Although written in Japanese, what the statistical inference is philosophically investigated.

Necessary inferences (e.g., The jury was not able to deliver its verdict by 3 o'clock. The jury did not deliver its verdict by 3 o'clock.) depend on linguistic knowledge. Invited inferences, (e.g., The jury was able to deliver its verdict by 3 o'clock. The jury delivered its verdict by 3 o'clock) depend on knowledge about the world. Responses were faster to necessary than to invited inferences when subjects verified only one of the two inference types (Experiments 1 (...) and 3). When subjects verified both inference types there was no difference between invited and necessary inferences (Experiments 2 and 4). These data suggest that linguistic and world knowledge are psychologically distinct and that when factual knowledge is not needed in a task it is not processed. In Experiments 3 and 4 incongruent world knowledge slowed response times for both inference types. This suggests that linguistic and factual knowledge are both port of the initial representation of a sentence. (shrink)

Inference versus consequence , an invited lecture at the LOGICA 1997 conference at Castle Liblice, was part of a series of articles for which I did research during a Stockholm sabbatical in the autumn of 1995. The article seems to have been fairly effective in getting its point across and addresses a topic highly germane to the Uppsala workshop. Owing to its appearance in the LOGICA Yearbook 1997 , Filosofia Publishers, Prague, 1998, it has been rather inaccessible. Accordingly (...) it is republished here with only bibliographical changes and an afterword. (shrink)

This paper distinguishes between two types of persuasive force arguments can have in terms of two different connections between arguments and inferences. First, borrowing from Pinto, an arguer's invitation to inference directly persuades an addressee if the addressee performs an inference that the arguer invites. This raises the question of how invited inferences are determined by an invitation to inference. Second, borrowing from Sorenson, an arguer's invitation to inference indirectly persuades an addressee if the addressee (...) performs an inference guided by the argument even though it is uninvited. This raises the question of how an invitation to inference can guide inferences that the arguer does not use the argument to invite. Focusing on belief-inducing inference, the primary aims here are to clarify what is necessary for an addressee's belief-inducing inference to be invited by an argument used as an instrument of persuasion; and to highlight the capacity of arguments to guide such inferences. The paper moves beyond Pinto's discussion by using Boghossian's Taking Condition in service of and in way that illustrates how epistemically bad arguments can rationally persuade addressees of their conclusions. (shrink)

This invited article is a response to the paper “Quantum Misuse in Psychic Literature,” by Jack A. Mroczkowski and Alexis P. Malozemoff, published in this issue of the Journal of Near-Death Studies. Whereas I sympathize with Mroczkowski’s and Malozemoff’s cause and goals, and I recognize the problem they attempted to tackle, I argue that their criticisms often overshot the mark and end up adding to the confusion. I address nine specific technical points that Mroczkowski and Malozemoff accused popular writers (...) in the fields of health care and parapsychology of misunderstanding and misrepresenting. I argue that, by and large—and contrary to Mroczkowski’s and Malozemoff’s claims—the statements made by these writers are often reasonable and generally consistent with the current state of play in foundations of quantum mechanics. (shrink)

L’atlas linguistique finnois de Lauri Kettunen (1940), accessible en ligne, a été initialement conçu par son auteur en fonction de variables de phonologie diachronique. Cependant, en raison de l’intrication de la phonologie dans la morphologie flexionnelle nominale et verbale du finnois, ces données se prêtent aisément à une lecture en termes de taxinomie morphologique. Le finnois apparaît alors comme bien moins « agglutinant » sur le plan typologique, et bien plus inférentiel, ou de type fusionnel. Nous appliquons le modèle PFM (...) (Paradigm Function Morphology) dans cette perspective, en proposant une modélisation diasystémique des classes flexionnelles du finnois. L’approche diachronique de Kettunen, fondée sur des étymons et des schèmes concaténatifs « agglutinants » invite par ailleurs à remonter plus haut dans l’histoire de la langue. On voit alors, comme d’un système somme toute simple de bipartition entre radicaux thématiques et athématiques, de disyllabes et d’imparisyllabiques, le diasystème finnois a évolué vers une complexification croissante, tout en préservant les structures fondamentales héritées. (shrink)

This paper is an attempt to give a general explanation of pragmatic aspects of linguistic negation. After a brief survey of classical accounts of negation within pragmatic theories (as speech act theory, argumentation theory and polyphonic theory), the main pragmatic uses of negation (illocutionary negation, external negation, lowering and majoring negation) are discussed within relevance theory. The question of the relevance of negative utterance is raised, and a general inferential schema (based on the so-called invited inference) is proposed (...) and tested for the main uses of negation discussed in the paper. (shrink)

This paper defends the deflationary character of two recent views regarding scientific representation, namely RIG Hughes’ DDI model and the inferential conception. It is first argued that these views’ deflationism is akin to the homonymous position in discussions regarding the nature of truth. There, we are invited to consider the platitudes that the predicate “true” obeys at the level of practice, disregarding any deeper, or more substantive, account of its nature. More generally, for any concept X, a deflationary approach (...) is then defined in opposition to a substantive approach, where a substantive approach to X is an analysis of X in terms of some property P, or relation R, accounting for and explaining the standard use of X. It then becomes possible to characterize a deflationary view of scientific representation in three distinct senses, namely: a “no-theory” view, a “minimalist” view, and a “use-based” view – in line with three standard deflationary responses in the philosophical literature on truth. It is then argued that both the DDI model and the inferential conception may be suitably understood in any of these three different senses. The application of these deflationary ‘hermeneutics’ moreover yields significant improvements on the DDI model, which bring it closer to the inferential conception. It is finally argued that what these approaches have in common – the key to any deflationary account of scientific representation – is the denial that scientific representation may be ultimately reduced to any substantive explanatory property of sources, or targets, or their relations. (shrink)

An influential way of distinguishing inferential from non-inferential processes appeals to representational states: an agent infers a conclusion from some premises only if she represents those premises as supporting that conclusion. By contrast, when some premises merely cause an agent to believe the conclusion, there is no relevant representational state. While promising, the appeal to representational states invites a regress problem, first famously articulated by Lewis Carroll. This paper develops a novel account of inference that invokes representational states without (...) succumbing to regress. The key move is to reject the tempting idea that the relevant representational states are causally prior to inferences. I argue, instead, that an inference constitutes the relevant representational state. To infer is thus—in the very drawing of the conclusion—to represent the premises as supporting the conclusion, and thereby to commit to that support relation. (shrink)

DNA profiling is a well-established technology for use in the criminal justice system, both in courtrooms and elsewhere. The fact that DNA profiles are based on non-coding DNA and do not reveal details about the physical appearance of an individual has contributed to the acceptability of this type of evidence. Its success in criminal investigation, combined with major innovations in the field of genetics, have contributed to a change of role for this type of evidence. Nowadays DNA evidence is not (...) merely about identification, where trace evidence is compared to a sample taken from a suspect. An ever-growing role is anticipated for DNA profiling as an investigative tool, a technique aimed at generating a suspect where there is none. One of these applications is the inference of visible traits. As this article will show, racial classifications are at the heart of this application. The Netherlands and its legal regulation of 'externally visible traits' will serve as an example. It will be shown that, to make this technology work, a large number of actors has to be enrolled and their articulations invited. This indicates that instead of a 'silent witness', a DNA profile should rather be seen as an 'articulate collective'. Based on two cases, I argue that the normativity of visible traits is context-dependent. Taking into account the practices in which technology is put to use alerts us to novel ethical questions raised by their application. (shrink)

O'Brien et al. reported that readers generated elaborative inferences only when a text contained characteristics that made it easy to predict the specific inference that a reader would draw, and virtually eliminated the possibility of the inference being discon-firmed. Garrod et al., however, offered two qualifications to these conclusions. First, the two text characteristics manipulated may have produced different types of elaborative inferencing: a biasing context results in a passive form of elaborative inferencing, involving setting up a context (...) of interpretation, whereas the presence of a demand sentence invites the reader to actively predict a subsequent expression. Secondly, clear evidence for either type of inference will be apparent only with truly anaphoric materials. This work describes how a passive form of elaborative inferencing, reported by Garrod et al, may be implemented in a connectionist manner. We take the connectionist model proposed by Shastri and Ajjanagadde in order to represent a text in the form of a network. Next we analyze and discuss how an attentional focus could operate with the proposed reasoner system in order to deal with inference control and anaphora resolution, during text understanding. Our own suggestion is that the system proposed by Shastri and Ajjanagadde could be extended by incorporating focus in order to apply it to some open problems related to text processing. However, this extension presents implementational problems due to its local character. Distributed models seem to be in a better position to deal with the shift of the attentional states, given that these systems can learn. Particularly, the model proposed by Sun is close to our aims, and so we will discuss its implications in order to design a cognitive architecture for text comprehension. (shrink)

Cet article traite du lien entre l’implicite et les grands principes d’inférence. L’implicite est une catégorie étendue qu’il n’est pas facile de circonscrire. Un des acquis de la pragmatique post-gricéenne est que les inférences entrent déjà en ligne de compte pour dériver « ce qui est dit » ou les explicatures, repoussant ainsi les frontières de la notion d’implicite. Nous montrons que les principes d’inférence postulés ne sont pas à l’abri d’être contredits dans les faits, compromettant ainsi leur validité. Cependant, (...) il est en partie possible de ne pas y recourir si, à la suite de Recanati, on considère qu’un modèle parallèle, associatif, est à même de conduire à la reconstruction de « ce qui est dit ». Il demeure toutefois nécessaire de les invoquer de façon minimale pour dériver une classe spécifique d’assomptions présentée ici, tout comme pour rendre compte du fait qu’une présomption générale de coopération ou de pertinence semble être émise par défaut, invitant les allocutaires à fournir un certain effort interprétatif lorsque le sens d’un énoncé n’apparaît pas tout de suite clairement. (shrink)

Cet article traite du lien entre l’implicite et les grands principes d’inférence. L’implicite est une catégorie étendue qu’il n’est pas facile de circonscrire. Un des acquis de la pragmatique post-gricéenne est que les inférences entrent déjà en ligne de compte pour dériver « ce qui est dit » ou les explicatures, repoussant ainsi les frontières de la notion d’implicite. Nous montrons que les principes d’inférence postulés ne sont pas à l’abri d’être contredits dans les faits, compromettant ainsi leur validité. Cependant, (...) il est en partie possible de ne pas y recourir si, à la suite de Recanati, on considère qu’un modèle parallèle, associatif, est à même de conduire à la reconstruction de « ce qui est dit ». Il demeure toutefois nécessaire de les invoquer de façon minimale pour dériver une classe spécifique d’assomptions présentée ici, tout comme pour rendre compte du fait qu’une présomption générale de coopération ou de pertinence semble être émise par défaut, invitant les allocutaires à fournir un certain effort interprétatif lorsque le sens d’un énoncé n’apparaît pas tout de suite clairement. (shrink)

Affect has been found to play important role in word and sentence processing. What is less understood is the role it plays in the process by which interlocutors arrive at what speakers mean. In the present review, the way affect modulates how we comprehend what others mean is examined. This is done by reviewing studies that have employed experimental methods using both written materials and spoken utterances. The goal of the present review is to better understand how the inferential process (...) is framed by affective factors and to propose ways of integrating affectivity into pragmatics. In Part 1, the motivation for the present review is explicated. In Part 2, experimental evidence is presented and suggestions are offered about how to best operationalise variables crucial for disentangling affect from other mechanisms that contribute to utterance interpretation. In Part 3, central notions of pragmatics are discussed with regard to affectivity, which it is proposed that, if construed as a goal-oriented activity that serves interpersonal configuration, can account for several pragmatic phenomena. (shrink)

Journalistic narrative prose is rich in suggestion. By voicing a single narrative ("X happened") statement in a supposedly non-fiction context, sender invites receiver to impute intelligibility, ascertainability, feasibility, topicality and speaker sincerity, as well as veracity, to the terms of an account. Conversely, when a narrative statement passes through a 'news-giving' medium, receivers are deterred from appraising those invited inferences. Similar inducements come from pseudonarrative statements. Meanwhile, some narratives convey other suggestions. Without being explicit they invite extra-logical inferences about (...) event locations, agent numbers, chronologies, relative importance, and determinants, as well as current practicabilities. Awareness of such suggestions is the first step toward distinguishing between prudent and foolhardy inferences. (shrink)

The incredible achievements of modern scientific theories lead most of us to embrace scientific realism: the view that our best theories offer us at least roughly accurate descriptions of otherwise inaccessible parts of the world like genes, atoms, and the big bang. In Exceeding Our Grasp, Stanford argues that careful attention to the history of scientific investigation invites a challenge to this view that is not well represented in contemporary debates about the nature of the scientific enterprise. The historical record (...) of scientific inquiry, Stanford suggests, is characterized by what he calls the problem of unconceived alternatives. Past scientists have routinely failed even to conceive of alternatives to their own theories and lines of theoretical investigation, alternatives that were both well-confirmed by the evidence available at the time and sufficiently serious as to be ultimately accepted by later scientific communities. Stanford supports this claim with a detailed investigation of the mid-to-late 19th century theories of inheritance and generation proposed in turn by Charles Darwin, Francis Galton, and August Weismann. He goes on to argue that this historical pattern strongly suggests that there are equally well-confirmed and scientifically serious alternatives to our own best theories that remain currently unconceived. Moreover, this challenge is more serious than those rooted in either the so-called pessimistic induction or the underdetermination of theories by evidence, in part because existing realist responses to these latter challenges offer no relief from the problem of unconceived alternatives itself. Stanford concludes by investigating what positive account of the spectacularly successful edifice of modern theoretical science remains open to us if we accept that our best scientific theories are powerful conceptual tools for accomplishing our practical goals, but abandon the view that the descriptions of the world around us that they offer are therefore even probably or approximately true. (shrink)

We propose a critique of normativism, defined as the idea that human thinking reflects a normative system against which it should be measured and judged. We analyze the methodological problems associated with normativism, proposing that it invites the controversial “is-ought” inference, much contested in the philosophical literature. This problem is triggered when there are competing normative accounts (the arbitration problem), as empirical evidence can help arbitrate between descriptive theories, but not between normative systems. Drawing on linguistics as a model, (...) we propose that a clear distinction between normative systems and competence theories is essential, arguing that equating them invites an “is-ought” inference: to wit, supporting normative “ought” theories with empirical “is” evidence. We analyze in detail two research programmes with normativist features – Oaksford and Chater’s rational analysis and Stanovich and West’s individual differences approach – demonstrating how, in each case, equating norm and competence leads to an is-ought inference. Normativism triggers a host of research biases in the psychology of reasoning and decision making: focusing on untrained participants and novel problems, analyzing psychological processes in terms of their normative correlates, and neglecting philosophically significant paradigms when they do not supply clear standards for normative judgement. For example, in a dual-process framework, normativism can lead to a fallacious “ought-is” inference, in which normative responses are taken as diagnostic of analytic reasoning. We propose that little can be gained from normativism that cannot be achieved by descriptivist computational-level analysis, illustrating our position with Hypothetical Thinking Theory and the theory of the suppositional conditional. We conclude that descriptivism is a viable option, and that theories of higher mental processing would be better off freed from normative considerations. (shrink)

This article provides a brief selective overview and discussion of recent research into natural language argumentation that may inform the study of human reasoning on the assumption that an episode of argumentation issues an invitation to accept a corresponding inference. As this research shows, arguers typically seek to establish new consequences based on prior information. And they typically do so vis-à-vis a real or an imagined opponent, or an opponent-position, in ways that remain sensitive to considerations of context, audiences, (...) and goals. Deductively valid inferences remain a limiting case of such reasoning. In view of these insights, it may appear less surprising that allegedly “irrational” behavior can regularly be produced in experimental settings that expose subjects to standardized reasoning tasks. (shrink)

When invited to consider the methodology of contemporary metaphysics, quite a number of procedures spring to mind as part of the metaphysician's toolkit. These include: eliciting and relying on intuitions; solving location problems and using “conceptual analysis”; inference to the best theory, both on internal metaphysical grounds and drawing from the theoretical reaches of the sciences; working on topics clearly close to, or even overlapping, those of other areas of inquiry using techniques of those other areas; achieving coherence (...) with other theories developed with other aims; and employing deductive reasoning to yield surprising conclusions. Many of these techniques are associated with significant and growing literatures about their scope, epistemic justification, suitability to different metaphysical problems, and so on. (shrink)

Invited to give the 2000 Rick Turner Memorial Lecture, I pondered the following question: What explains the fact that the sincere thought of a brilliant and heroic person such as Turner can appear preposterous to me, if bad faith or scholarly ignorance on one side or the other are ruled out, as they should be in this case? I address this question by considering what ‘ideologies' are from the perspective of cognitive learning theory. I describe the dynamics by which (...) pressures for social coordination cause brains to implement alternative natural softwares for performing inferences in complex domains of association and inference. I conclude by noting that this need not imply normative relativism, since the relative justifications for conclusions produced by different softwares can still be debated. My aim is thus not to contest Turner's ideology or political views, but to partially explain how learning produces differences that transcend factual disagreements and even ethical ones. S. Afr. J. Philos. Vol.22(2) 2003: 139–156. (shrink)

Semantic studies on diagrammatic notations (Barwise & Etchemendy, ; Shimojima, ; Stenning & Lemon, ) have revealed that the “non-deductive,” “emergent,” or “perceptual” effects of diagrams (Chandrasekaran, Kurup, Banerjee, Josephson, & Winkler, ; Kulpa, ; Larkin & Simon, ; Lindsay, ) are all rooted in the exploitation of spatial constraints on graphical structures. Thus, theoretically, this process is a key factor in inference with diagrams, explaining the frequently observed reduction of inferential load. The purpose of this study was to (...) examine the empirical basis for this theoretical suggestion, focusing on the reality of the constraint-exploitation strategy in actual practices of diagrammatic reasoning. Eye movements were recorded while participants used simple position diagrams to solve three- or four-term transitive inference problems. Our experiments revealed that the participants could exploit spatial constraints on graphical structures even when (a) they were not in the position of actually manipulating diagrams, (b) the semantic rule for the provided diagrams did not match their preferences, and (c) the constraint-exploitation strategy invited a partly adverse effect. These findings indicate that the hypothesized process is in fact robust, with the potential to broadly account for the inferential advantage of diagrams. (shrink)

We propose a critique ofnormativism, defined as the idea that human thinking reflects a normative system against which it should be measured and judged. We analyze the methodological problems associated with normativism, proposing that it invites the controversial “is-ought” inference, much contested in the philosophical literature. This problem is triggered when there are competing normative accounts (the arbitration problem), as empirical evidence can help arbitrate between descriptive theories, but not between normative systems. Drawing on linguistics as a model, we (...) propose that a clear distinction between normative systems and competence theories is essential, arguing that equating them invites an “is-ought” inference: to wit, supporting normative “ought” theories with empirical “is” evidence. We analyze in detail two research programmes with normativist features – Oaksford and Chater's rational analysis and Stanovich and West's individual differences approach – demonstrating how, in each case, equating norm and competence leads to an is-ought inference. Normativism triggers a host of research biases in the psychology of reasoning and decision making: focusing on untrained participants and novel problems, analyzing psychological processes in terms of their normative correlates, and neglecting philosophically significant paradigms when they do not supply clear standards for normative judgement. For example, in a dual-process framework, normativism can lead to a fallacious “ought-is” inference, in which normative responses are taken as diagnostic of analytic reasoning. We propose that little can be gained from normativism that cannot be achieved by descriptivist computational-level analysis, illustrating our position with Hypothetical Thinking Theory and the theory of the suppositional conditional. We conclude that descriptivism is a viable option, and that theories of higher mental processing would be better off freed from normative considerations. (shrink)

Particularists in ethics emphasize that the normative is holistic, and invite us to infer with them that it therefore defies generalization. This has been supposed to present an obstacle to traditional moral theorizing, to have striking implications for moral epistemology and moral deliberation, and to rule out reductive theories of the normative, making it a bold and important thesis across the areas of normative theory, moral epistemology, moral psychology, and normative metaphysics. Though particularists emphasize the importance of the holism of (...) the normative, however, it is not something that they have been able to explain. In this paper I’ll show how to use a small number of simple and, I’ll argue, independently compelling assumptions in order to both predict and explain the holistic features of the normative with respect to the non-normative. The basic idea of the paper is simple. It is that normative claims are holistic because they are general, rather than because they defy generalization. (shrink)

Gerben Meynen (2019) invites us to consider the potential ethical implications of what he refers to as “thought apprehension” technology for psychiatric practice, that is, technologies that involve recording brain activity, and using this to infer what people are thinking (or intending, desiring, feeling, etc.). His article is wide-ranging, covering several different ethical principles, various situations psychiatrists might encounter in therapeutic, legal and correctional contexts, and a range of potential incarnations of this technology, some more speculative than others. Although Meynen’s (...) article raises some highly relevant potential implications of some “thought apprehension”-based neurotechnologies, which are certainly worthy of further exploration, I suggest that Meynen’s analysis is beset by two problems. First, some of the technologies that form the focus of his discussion are too speculative, and second, due to the many issues under consideration, some problems are not adequately characterized, relevant ethical principles are misidentified, and valuable literature is not sufficiently engaged with. Consideration of these weaknesses might allow us to better see how to conduct a fruitful analysis of speculative neurotechnologies. (shrink)

The central problem of this dissertation arises from reflecting on Euthyphro’s often neglected final attempt to define piety and the discussion (elenchos) that follows. He claims that piety is knowledge of how to give to the gods what is pleasing in prayer and sacrifice. Socrates, without much argument, reduces Euthyphro’s answer to his earlier, already refuted one – that piety is what is dear to the gods – inviting the question of whether this is all the elenchos is meant to (...) accomplish. If it is not, we should expect to find its purpose in the brief discussion that falls between Euthyphro’s definition and the final reduction of this definition to its predecessor. At the center of this discussion Socrates compares Euthyphronic piety to commerce. This comparison has classically been interpreted as showing Euthyphro’s definition to imply that humans can benefit gods, and since Euthyphro has elsewhere rejected this idea, his definition is refuted by contradiction. But this strands the reduction withoutpurpose, and scrutiny of the text suggests this is not the correct way to interpret the inference structure of this intervening discussion. In this dissertation I argue for two main theses: (i) the disambiguation thesis, which claims that the comparison to commerce is not the philosophical point of the elenchos, and does not result in the refutation of Euthyphro’s definition. It is instead intended to elicit which of two possible models of piety Euthyphro means to describe, the language of his definition being equivocal in at least one important respect, namely whether or not a met need necessarily confers a benefit upon the recipient; (ii) the translation thesis, which claims that there are some important observations to be made about the Greek of Euthyphro’s definition, observations that will make the dis- ambiguation thesis more plausible, and which are obscured by traditional translations of the passage under discussion. These observations concern kecharismena, a word often translated as ‘pleasing’, but is better understood as denoting a broad set of social and religious norms, and for which there is no simple English equivalent. Together, these two theses allow us to see that the main philosophical lesson of the last elenchos is that Euthyphro’s account of piety as ritual is an application of his more famous third attempt to define piety voluntaristically, and that any philosophical concerns over the last definition are consequences of it being an extension of the third one. This is why Plato puts the two side-by-side to close the dialogue, and we are kept from seeing this clearly when we take the comparison to commerce to be accomplishing the main work of the elenchos, rather than as clarifying Euthyphro’s answer so that its conceptual similarities to the previous answer are plainly visible. I conclude the project by defending the venerable view that Socratic piety is service to the gods instantiated by rational inquiry, and show how this model of piety is the antithesis to, and moral remedy for, Euthyphronic piety. (shrink)

IN THE winter and spring of 1031,1 was invited to give a series of ten lectures at Harvard University. The subject chosen was the Philosophy of Art; the lectures are the origin of the present volume. The Lectureship was founded in memory of William James and I esteem it a great honor to have this book associated even indirectly with his distinguished name. It is a pleasure, also, te recall, in connection with the lectures, the unvarying kindness and hospitality (...) of my colleagues in the department of philosophy at Harvard. I am somewhat embarrassed in an effort to acknowledge indebtedness to other writers on the subject. Some aspects of it may be inferred from authors mentioned or quoted in the text. I have read on the subject for many years, however, more or less widely in English literature, somewhat less in French and still less in German, and I have absorbed much from sources which I cannot now directly recall. Moreover, my obligations to a number of writers are much greater than might be gathered from allusions to them in the volume itself. My indebtedness to those who have helped me directly can be more easily stated. Dr. Joseph Ratner gave me a number of valuable references. Dr. Meyer Schapiro was good enough to read the twelfth and thirteenth chapters and to make suggestions which I have freely adopted. Irwin Edman read a large part of the book in manuscript and I owe much to his suggestions and criticism. Sidney Hook read many of the chapters, and their present form is largely the result of discussions with him; this statement is especially true of the chapters on criticism and the last chapter. My greatest indebtedness is to Dr. A. C. Barnes. The chaptershave been gone over one by one with him, and yet what I owe to his comments and suggestions on this account is but a small measure of my debt. I have had the benefit of con versations with him through a period of years, many of which occurred in the presence of the unrivaled collection of pictures he has assembled. The influence of these conversations, together with that of his books, has been a chief factor in shapingmy own thinking about the philosophy of esthetics. Whatever is sound in this volume is due more than I can say to the great educational work carried on in the Barnes Foundation. That work is of a pioneer quality comparable to the best that has been done in any field during the present generation, that of science not ex cepted. I should be glad to think of this volume as one phase of the widespread influence the Foundation is exercising. I am indebted to the Barnes Foundation for permission to reproduce a number of illustrations and to Barbara and Willard Morgan for the photographs from which the reproductions were made. J. D. (shrink)

Since the BBS article in which Premack and Woodruff (1978) asked “Does the chimpanzee have a theory of mind?,” it has been repeatedly claimed that there is observational and experimental evidence that apes have mental state concepts, such as “want” and “know.” Unlike research on the development of theory of mind in childhood, however, no substantial progress has been made through this work with nonhuman primates. A survey of empirical studies of imitation, self-recognition, social relationships, deception, role-taking, and perspective-taking suggests (...) that in every case where nonhuman primate behavior has been interpreted as a sign of theory of mind, it could instead have occurred by chance or as a product of nonmentalistic processes such as associative learning or inferences based on nonmental categories. Arguments to the effect that, in spite of this, the theory of mind hypothesis should be accepted because it is more parsimonious than alternatives or because it is supported by convergent evidence are not compelling. Such arguments are based on unsupportable assumptions about the role of parsimony in science and either ignore the requirement that convergent evidence proceed from independent assumptions, or fail to show that it supports the theory of mind hypothesis over nonmentalist alternatives. Progress in research on theory of mind requires experimental procedures that can distinguish the theory of mind hypothesis from nonmentalist alternatives. A procedure that may have this potential is proposed. It uses conditional discrimination training and transfer tests to determine whether chimpanzees have the concept “see.” Commentators are invited to identify flaws in the procedure and to suggest alternatives. Key Words: apes; associative learning; concepts; convergence; deception; evolution of intelligence; folk psychology; imitation; mental state attribution; monkeys; parsimony; perspective-taking; primates; role-taking; self-recognition; social cognition; social intelligence; theory of mind. (shrink)

The homeostatic property cluster theory is widely influential for its ability to account for many natural-kind terms in the life sciences. However, the notion of homeostatic mechanism has never been fully explicated. In 2009, Carl Craver interpreted the notion in the sense articulated in discussions on mechanistic explanation and pointed out that the HPC account equipped with such notion invites interest-relativity. In this paper, we analyze two recent refinements on HPC: one that avoids any reference to the causes of the (...) clustering of properties and one that replaces homeostatic mechanisms with causal networks represented by causal graphs. We argue that the former is too slender to account for some inductive inference in science and the latter, thicker account invites interest-relativity, as the original HPC does. This suggests that human interest will be an un-eliminative part of a satisfactory account of natural kindness. We conclude by discussing the implication of interest-relativity to the naturalness, reality, or objectivity of kinds and indicating an overlooked aspect of natural kinds that requires further studies. (shrink)

The sentence "The boss fired the employee who is always late" invites the defeasible inference that the speaker is attempting to convey that the lateness caused the firing. We argue that such inferences cannot be understood in terms of familiar approaches to extrasemantic enrichment such as implicature, impliciture, explicature, or species of local enrichment already in the literature. Rather, we propose that they arise from more basic cognitive strategies, grounded in processes of coherence establishment, that thinkers use to make (...) sense of the world. Attention to such cases provides a richer and more varied landscape of extrasemantic enrichment than has been appreciated to date. (shrink)

We present a dynamic approach to Peirce’s original construal of abductive logic as a logic of conjecture making, and provide a new decidable, contraction-free and cut-free proof system for the dynamic logic of abductive inferences with neighborhood semantics. Our formulation of the dynamic logic of abduction follows the philosophical and scientific track that led Peirce to his late, post-1903 characterization of abductive conclusions as investigands, namely invitations to investigate propositions conjectured at the level of pre-beliefs.

Communication, when defined as an act intended to affect the psychological state of another individual, demands the use of inference. Either the signaler, the recipient, or both must make leaps of understanding which surpass the semantic information available and draw from pragmatic clues to fully imbue and interpret meaning. While research into human communication and the evolution of language has long been comfortable with mentalistic interpretations of communicative exchanges, including rich attributions of mental state, research into animal communication has (...) balked at theoretical models which describe mentalized cognitive mechanisms. We submit a new theoretical perspective on animal communication: the model of inferential communication. For use when existing proximate models of animal communication are not sufficient to fully explain the complex, flexible, and intentional communication documented in certain species, specifically non-human primates, we present our model as a bridge between shallower, less cognitive descriptions of communicative behavior and the perhaps otherwise inaccessible mentalistic interpretations of communication found in theoretical considerations of human language. Inferential communication is a framework that builds on existing evidence of referentiality, intentionality, and social inference in primates. It allows that they might be capable of applying social inferences to a communicative setting, which could explain some of the cognitive processes that enable the complexity and flexibility of primate communication systems. While historical models of animal communication focus on the means-ends process of behavior and apparent cognitive outcomes, inferential communication invites consideration of the mentalistic processes that must underlie those outcomes. We propose a mentalized approach to questions, investigations, and interpretations of non-human primate communication. We include an overview of both ultimate and proximate models of animal communication, which contextualize the role and utility of our inferential communication model, and provide a detailed breakdown of the possible levels of cognitive complexity which could be investigated using this framework. Finally, we present some possible applications of inferential communication in the field of non-human primate communication and highlight the role it could play in advancing progress toward an increasingly precise understanding of the cognitive capabilities of our closest living relatives. (shrink)

Stories can be powerful argumentative vehicles, and they are often used to present arguments from analogy, most notably as parables, fables or allegories where the story invites the hearer to infer an important claim of the argument. Case Based Reasoning in Law has many similar features: the current case is compared to previously decided cases, and in case the similarity between the previous and current cases is deemed sufficient, a similar conclusion can be drawn for the current case. In this (...) article, we want to take a further step towards computationally modelling the connection between stories and argumentation in analogical reasoning. We show how story schemes can be used to investigate and determine story similarity, and how the point of a story – that is, the conclusion that the storyteller intends the hearer to draw – can be likened to the ratio decidendi in a legal case. Finally, we present some formal tools for modelling stories based on computational models of practical reasoning. (shrink)

It has been argued that moral assertions involve the possession, on the part of the speaker, of appropriate non-cognitive attitudes. Thus, uttering ‘murder is wrong’ invites an inference that the speaker disapproves of murder. In this paper, we present the result of 4 empirical studies concerning this phenomenon. We assess the acceptability of constructions in which that inference is explicitly canceled, such as ‘murder is wrong but I don’t disapprove of it’; and we compare them to similar constructions (...) involving ‘think’ instead of ‘disapprove’—that is, Moore paradoxes (‘murder is wrong but I don’t think that it is wrong’). Our results indicate that the former type of constructions are largely infelicitous, although not as infelicitous as their Moorean counterparts. (shrink)

This article examines one practice for challenging a co-participant, the use of polar interrogatives that are unanswerable. These are questions that are designed to receive a confirming answer of the same polarity as the question, so-called `Same Polarity Questions'. Speakers accomplish this bias by formatting the question in accordance with their state of knowledge. Based on the recipient's prior turns at talk, a speaker can infer what the recipient's stance towards some matter is and use a `Same Polarity Question' to (...) assert this inference and invite the recipient to confirm the stance. However, the sequential context in which these questions are produced means that with a confirming answer the recipient is heard to be in disagreement with the speaker and can subsequently be held accountable for this disagreement. Neither is a disconfirming response a real alternative, because this would contrast with the information provided by the recipient in prior talk. As this information is what leads the speaker to convey a certain belief about the recipient, the recipient is accountable for having misled the speaker. Because both confirming and disconfirming answers are accountable and hence problematic, recipients treat this type of question as unanswerable and instead orient to it as a challenge. (shrink)

About three decades ago, the late Ronald Giere introduced a new framework for teaching scientific reasoning to science students. Giere’s framework presents a model-based alternative to the traditional statement approach—in which scientific inferences are reconstructed as explicit arguments, composed of (single-sentence) premises and a conclusion. Subsequent research in science education has shown that model-based approaches are particularly effective in teaching science students how to understand and evaluate scientific reasoning. One limitation of Giere’s framework, however, is that it covers only one (...) type of scientific reasoning, namely the reasoning deployed in hypothesis-driven research practices. In this paper, we describe an extension of the framework. More specifically, we develop an additional model-based scheme that captures reasoning in application-oriented practices (which are very well represented in contemporary science). Our own teaching experience suggests that this extended framework is able to engage a wider audience than Giere’s original. With an eye on going beyond such anecdotal evidence, we invite our readers to test out the framework in their own teaching. (shrink)

The word euboulia, which means excellence in counsel or sound judgement, occurs in only three places in the authentic writings of Plato. The sophist Protagoras makes euboulia the focus of his whole enterprise : What I teach a person is good judgement about his own affairs — how best he may manage his own household; and about the affairs of the city — how he may be most able to handle the business of the city both in action and in (...) speech. Thrasymachus, too, thinks well of euboulia. Invited by Socrates to call injustice kakoetheia ’, i.e. as simple-mindedness), he declines the sophistry and says : ‘No, I call it good judgement’. But Plato finds little occasion to introduce the concept in developing his own ethical and political philosophy. The one place where he mentions euboulia is in his defence of the thesis that his ideal city possesses the four cardinal virtues. He begins with wisdom, and justifies the ascription of wisdom to the city on the ground that it has euboulia — which he goes on to identify with the knowledge required by the guardians: ‘with this a person does not deliberate on behalf of any of the elements in the city, but for the whole city itself — how it may best have dealings with itself and with the other cities’ . It is normally rather dangerous to draw an inference from the absence or rarity of a word to the absence or rarity of the idea expressed by the word. (shrink)

The psychology of reasoning is increasingly considering agents' values and preferences, achieving greater integration with judgment and decision making, social cognition, and moral reasoning. Some of this research investigates utility conditionals, ‘‘if p then q’’ statements where the realization of p or q or both is valued by some agents. Various approaches to utility conditionals share the assumption that reasoners make inferences from utility conditionals based on the comparison between the utility of p and the expected utility of q. This (...) article introduces a new parameter in this analysis, the underlying causal structure of the conditional. Four experiments showed that causal structure moderated utility-informed conditional reasoning. These inferences were strongly invited when the underlying structure of the conditional was causal, and significantly less so when the underlying structure of the conditional was diagnostic. This asymmetry was only observed for conditionals in which the utility of q was clear, and disappeared when the utility of q was unclear. Thus, an adequate account of utility-informed inferences conditional reasoning requires three components: utility, probability, and causal structure. (shrink)

To what use can causal claims established in good studies be put? We give examples of studies from which inaccurate inferences were made about target policy situations. The usual diagnosis is that the studies in question lack external validity, which means that the same results do not hold in the target as in study. That’s a label that just repeats what we already knew. We offer a deeper analysis. Our analysis points to the need for interdisciplinarity and to the demand (...) to focus not on the study – as the expression ‘external validity’ invites you to do – but on the target. The call for interdisciplinary approaches to real life problems is common since it is widely acknowledged that what happens in the real world seldom falls under the auspices of any single research domain. Our focus is on one specific real life problem: how to use causal claims from good studies to help predict whether the policies tested will work in a new situation. Our analysis of what it takes to back up these predictions points up very specific stages in the process of prediction where we are bound to get it wrong if we do not diversify our concepts, our knowledge and our methods. We isolate two reasons inferences from study to target fail. First, policy variables do not produce results on their own; they need helping factors. The distribution of helping factors is likely to be unique or local for each study, so one cannot expect external validity to be all that common. Second, researchers often give too concrete a description of the cause in the study for it to carry over to the target.ion is necessary to get causes that travel. There is no sure-fire way to guard against these problems. But the unavailability of one perfect tool does not imply there are no second best contrivances. Two general pointers for Good Practice in policy advice follow from our diagnosis: focus on the concrete details in the target and use cross discipline heuristics that diversify background knowledge. (shrink)

The technical results presented here on continuity and approximate implication are obviously incomplete. In particular, a syntactic characterization of approximate implication is highly desirable. Nevertheless, I believe the results above do show that the theory has considerable promise for application to the areas mentioned at the top of the paper.Formulation and defense of realist interpretations of science, for example, require approximate truth because we hardly ever have evidence that a particular scientific theory corresponds perfectly with a portion of the real (...) world. Realists need to assert, then, that evidence for a theory is evidence for its approximate truth, not its truth (see [3] and [18]). Approximate truth is, however, a vague notion, and specification of quantity terms and of a sense of approximation are needed to make precise applications of it. Suitability of both vocabulary and sense of approximation depend on the subject matter, and their selection is a partly empirical matter that raises complex issues. In light of the number of common inferences which are not continuous, realists also need to be concerned about indiscriminate use of deductive logic to derive consequences from approximately true theories. These issues will be considered further in a future paper.Approximate truth also has potential application in areas of artificial intelligence that require inference from inaccurate data. In the ‘qualitative’ physical theories of de Kleer and Brown [6], for example, ‘qualitative’ values are derived by partitioning the real numbers into regions. Inferences leading from inside to outside a region must be identified and avoided, and approximate implication and continuity may prove useful in doing this. More generally, growing use of predicate logic as a programming language invites application of the theory of approximate truth as a symbolic substitute for numerical evaluation of computation errors. This too will be the subject of a future paper. (shrink)

My purpose here is to describe a type of argument characterized by the fact that one of its premises is a directive—i.e. what is expressed by a directive sentence: a general instruction how to proceed or act. This directive premise brings an ostensive mechanism for the inclusion of visual or multimodal elements in an argument. If an argument is an invitation to inference, by using such a directive utterance the addresser is inviting the addressee to make an inference (...) from an image, not from a proposition. Hence I will call them arguments from ostension or from deixis. (shrink)

The wordeuboulia, which meansexcellence in counselorsound judgement, occurs in only three places in the authentic writings of Plato. The sophist Protagoras makeseubouliathe focus of his whole enterprise(Prot.318e–319a):What I teach a person is good judgement about his own affairs — how best he may manage his own household; and about the affairs of the city — how he may be most able to handle the business of the city both in action and in speech.Thrasymachus, too, thinks well ofeuboulia. Invited by (...) Socrates to call injusticekakoetheia(vicious disposition — he has just identified justice as ‘an altogether noble good nature (euetheia)’, i.e. as simple-mindedness), he declines the sophistry and says (Rep. 348d): ‘No, I call it good judgement’. But Plato finds little occasion to introduce the concept in developing his own ethical and political philosophy. The one place where he mentionseubouliais in his defence of the thesis that his ideal city possesses the four cardinal virtues. He begins with wisdom, and justifies the ascription of wisdom to the city on the ground that it haseuboulia(Rep.428b) — which he goes on to identify with the knowledge required by the guardians: ‘with this a person does not deliberate on behalf of any of the elements in the city, but for the whole city itself — how it may best have dealings with itself and with the other cities’ (428c–d). It is normally rather dangerous to draw an inference from the absence or rarity of a word to the absence or rarity of the idea expressed by the word. (shrink)

In proposing this reflection about the relationship between dogmatic theology and Christian spiritual experience, we want to demonstrate in this article how a great 20 th century theologian, Hans Urs von Balthasar, invites the reader to enter into the reading and understanding of the historical and theological reasons that have guided some options and postures assumed, as well as to recognize the impacts caused both in the theology and in the spiritual experience and yet, more widely, in Christianity and its (...) mission. The path chosen for this study starts from one of his works, L’amour seul est digne de foi, and relies, then, in the impressive intellectual patrimony of the author, by researching in the same the transversality of the theme. We will be, in the present work, vigilant to the threat of disruptions, particularly analyze the conception and the possibility of the Christian spiritual experience by inquiring the Old Testament, the New Testament and the Holy Fathers. What is the hope delineated in this dialogue? It will be possible to infer partial conclusions from the route made. Further researches will be essential in order to reach the understanding of everything that is at stake in the search for intelligibility of the Theology and of the Christian experience itself. (shrink)

Can argumentation schemes play a part in the critical processing of argumentation by lay people? In a qualitative study, participants were invited to come up with strong and weak arguments for a given claim and were subsequently interviewed for why they thought the strong argument was stronger than the weak one. Next, they were presented with a list of arguments and asked to rank these arguments from strongest to weakest, upon which they were asked to motivate their judgments in (...) an interview. In order to assess whether lay people apply argument scheme specific criteria when performing these tasks, five different argumentation schemes were included in this study: argumentation from authority, from example, from analogy, from cause to effect, and from consequences. Laypeople’s use of criteria for argument quality was inferred from interview protocols. The results revealed that participants combined general criteria from informal logic and scheme-specific criteria. The results supported the conventional validity of the pragma-dialectical argument scheme rule in a strong sense and provided a more fine-grained view of central processing in the Elaboration Likelihood Model. (shrink)

To what use can causal claims established in good studies be put? We give examples of studies from which inaccurate inferences were made about target policy situations. The usual diagnosis is that the studies in question lack external validity, which means that the same results do not hold in the target as in study. That’s a label that just repeats what we already knew. We offer a deeper analysis. Our analysis points to the need for interdisciplinarity and to the demand (...) to focus not on the study – as the expression ‘external validity’ invites you to do – but on the target. The call for interdisciplinary approaches to real life problems is common since it is widely acknowledged that what happens in the real world seldom falls under the auspices of any single research domain. Our focus is on one specific real life problem: how to use causal claims from good studies to help predict whether the policies tested will work in a new situation. Our analysis of what it takes to back up these predictions points up very specific stages in the process of prediction where we are bound to get it wrong if we do not diversify our concepts, our knowledge and our methods. We isolate two reasons inferences from study to target fail. First, policy variables do not produce results on their own; they need helping factors. The distribution of helping factors is likely to be unique or local for each study, so one cannot expect external validity to be all that common. Second, researchers often give too concrete a description of the cause in the study for it to carry over to the target.ion is necessary to get causes that travel. There is no sure-fire way to guard against these problems. But the unavailability of one perfect tool does not imply there are no second best contrivances. Two general pointers for Good Practice in policy advice follow from our diagnosis: focus on the concrete details in the target and use cross discipline heuristics that diversify background knowledge. (shrink)

Nonhuman animals seem to make inferences and have mental representations. Brandom articulates a Kantian (and Hegelian) account of representation that seems to make nonhuman mental content impossible: animals are merely sentient, not sapient. His position is problematic because it makes it impossible to understand how our cognitive capacities evolved. This essay discusses experimental and ethological work on transitive inference. It argues that to fit such evidence within the Kantian framework, there must be degrees of normativity. This invites us to (...) understand the distinction between sapience and sentience as endpoints of a continuum, not as a dichotomy. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:There's Nothing Wrong with Raw Perception:A Response to Chakrabarti's Attack on Nyāya's Nirvikalpaka PratyakṣaStephen H. PhillipsIn the lead article of the fiftieth anniversary issue of Philosophy East and West (January 2000), Arindam Chakrabarti elaborates seven reasons why Nyāya should jettison "indeterminate perception" and view all perception as determinate, that is to say, as having an entity (a) as qualified by a qualifier (F) as object (Fa). In his notes, (...) Chakrabarti invites a reply "so that," as he says, "I may know why immaculate perception is needed by Nyāya after all." The following is a response that shows not so much why indeterminate perception is needed by Nyāya but why it is identified as a causal factor necessary to the arising of some (not all) determinate perception defined as "perception of an entity as qualified." Here I follow Gaṅgeśa Upādhyāya, the fourteenth-century founder (with the help of a few less well known predecessors and contemporaries) of "New Logic," Navya Nyāya. Gaṅgeśa devotes an entire section (about one eighteenth) of the perception chapter of his monumental Tattvacintāmaṇi (Jewel of Reflection about Epistemology) to nirvikalpaka pratyaksṣa,1 and he is a chief target of Chakrabarti's chastisement.2Now, first of all, I want to follow Gaṅgeśa's ground rules. The Naiyāyika is not concerned with strategies about how to look good in debates (with Buddhists or anyone else). His attitude is truth-seeking, not eristic, and thus no reply will be given to Chakrabarti's agonizing about how best to show ourselves in controversies with (in particular, Buddhist) adversaries (and Wilfrid Sellars). Gaṅgeśa's reflections are vāda—and the section is rightly titled nirvikalpaka-vāda, vāda being "inquiries among friends"—directed to uncovering real causal factors, not to winning a debate or countering sophisms. Deception, or counter-deception, is sometimes appropriate—for instance, to protect a student or other judge from fallacies advanced by people of bad character. But not here. So I will lay out Gaṅgeśa's argument for identifying nirvikalpaka pratyaksṣa, and then run through Chakrabarti's list of reasons for rejecting it with an eye to the objection's salience to Gaṅgeśa's project. In other words, Chakrabarti's objections will be taken up with an eye to the truth as it appears to a Naiyāyika, not with an eye to how our team should best present itself to outsiders. I have little to say about Chakrabarti's complaints about appearances—in fact, I find them delightful. Don't let him fool you. There's no greater Naiyāyika enthusiast than Chakrabarti himself, and he knows how to distill a controversy to show the wisdom [End Page 104] of Nyāya in contrast to revealing a deficiency, as he appears to be doing here. He does this to make us think broadly about Nyāya in a contemporary context. And at the end I join him in making some very general comments about Nyāya's realism. First, Gaṅgeśa's argument and a rebuttal of Chakrabarti's seven reasons from Gaṅgeśa's point of view.There is no direct, apperceptive evidence for nirvikalpaka pratyaksṣa; rather, it is posited by force of the following inference as the first step of a two-step argument. "The perceptual cognition, 'A cow' (for example), is generated by a cognition of the qualifier, since it is a cognition of an entity as qualified (by that qualifier appearing), like an inference." The second step takes a person's first perception of an individual (Bessie, let us say) as a cow (i.e., as having some such property) as the perceptual cognition figuring as the inference's subject (or pakṣa) such that the cognizer's memory not informed by previous cow experience could not possibly provide the qualifier, cowhood. The qualifier has to be available, and the best candidate seems to be its perception in the raw, a qualifier (cowhood), that is to say, not (as some are wont to misinterpret the point... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy, Psychiatry, & Psychology 10.3 (2003) 261-264 [Access article in PDF] Contingency, Arbitrariness, and Failure Michael Loughlin PICKERING AIMS TO affect the form of the debate about the reality of mental illness. He notices that many influential arguments both for and against the existence of mental illnesses are in an important sense circular. It is observed that a given condition is relevantly similar to conditions we all agree are (...) genuine illnesses and on the basis of this observation it is concluded that it too can be classified as a type of illness—from which it can be inferred that mental illnesses do indeed exist. But Pickering contends that the initial observation can only be made if we already construe the condition in question as a type of illness. Otherwise we may interpret the data differently.So unless we help ourselves to the categorization whose legitimacy it is supposed to establish, the likeness argument cannot get going. He illustrates his point effectively. Most of his examples are taken from authors defending the existence of mental illness and it would have been interesting to see a more detailed account of the argument working in the other direction. Even so, his references to Szasz (Pickering 2003) are sufficient to convince readers familiar with Szasz's work that a version of the likeness argument (the paradigm approach) is as much at work in his refutation of the existence of mental illnesses as is it in Boorse's proof of their reality.This is an incisive analysis, which should be taken very seriously indeed by contributors to the debate. Its most immediate implication is a negative one. We should not rely upon any version of the likeness argument to establish the existence (or nonexistence) of mental illnesses: "the likeness argument must fail" (Pickering 2003, p. 253). One important question left unanswered by the paper concerns what form the debate should take, if its criticisms are accepted. Assuming we agree that the likeness argument is methodologically flawed, what should the methodology be for debating the substantive issues at stake? Put another way, how can we break the circle? How is it possible to construct arguments that do not presuppose their main conclusions, and so to make real intellectual progress in addressing this issue? Is this in fact possible? What would a valid argument in this area look like, and what sort of observational premises (if any) would be acceptable as evidence?On the most skeptical reading of his thesis, Pickering's arguments render the ideal of intellectual progress toward a resolution of this debate strictly unattainable. The circle cannot be broken, because the theory dependence of our categorizations makes the truth about the reality of mental illness either unknowable or irredeemably relative to one's intellectual starting point. Having argued that the likeness argument fails in the case of alcoholism, Pickering states one possible response to this failure on the part of psychiatry as the concession that the classification [End Page 261] of alcoholism as an illness is "very much a matter of opinion (2003, p. 250). Because he then argues that the argument fails for logically analogous reasons in the case of schizophrenia, we may feel invited to draw the same conclusion about that condition. He later admits there is "some truth in the charge" that "the rejection of the likeness argument seems to introduce an unacceptable element of contingency into the way important questions about the categorization of schizophrenia and alcoholism are answered" (p. 253). His response to this is that it is not his arguments that lead to this element of contingency, and he reiterates that the likeness argument cannot get beyond such contingencies (p. 253).Certainly he seems committed to the view that no observational premises can "decide, or help decide, the issue" because the "detectable and observable features" of a purported mental illness "do not determine what description should be given of them" (p. 250). Even the fact that a particular description seems intuitively irresistible or "natural" cannot decide this. His argument on this point concerns the fact that what appears natural or intuitively obvious to us is... (shrink)

Explorations in Archaeology and Philosophy grew out of an interdisciplinary conference on the Upper Palaeolithic, “Digging Deeper: Archaeological and Philosophical Perspectives”, held on Miami Beach, Florida, in December 2017. The previous decade had seen increasing numbers of publications on topics of interest to both philosophers and archaeologists, so the time was ripe for a conference which served to generate constructive dialogue between researchers from both disciplines. Themes discussed included art, music, the mind, symbols, mortuary practices, and archaeological methodology. This volume (...) draws from several contributors to that conference as well as other leading researchers at the forefront of the intersection of archaeology and philosophy. Its scope is expanded from the Upper Palaeolithic to archaeological research in general—adopting a broad conception inviting many perspectives from philosophy and interdisciplinary evolutionary studies to the table—and is organized by topics into four sections: Theory and Inference; Interdisciplinary Connections; Cognition, Language and Normativity; Ethical Issues. (shrink)

In this paper we prove the completeness of three logical systems I LI, IL2 and IL3. IL1 deals solely with identities {a = b), and its deductions are the direct deductions constructed with the three traditional rules: (T) from a = b and b = c infer a = c, (S) from a = b infer b = a and (A) infer a = a(from anything). IL2 deals solely with identities and inidentities {a ± b) and its deductions include both (...) the direct and the indirect deductions constructed with the three traditional rules. IL3 is a hybrid of IL1 and IL2: its deductions are all direct as in IL1 but it deals with identities and inidentities as in IL2. IL1 and IL2 have a high degree of naturalness. Although the hybrid system IL3 was constructed as an artifact useful in the mathematical study of IL1 and IL2, it nevertheless has some intrinsically interesting aspects. The main motivation for describing and studying such simple systems is pedagogical. In teaching beginning logic one would like to present a system of logic which has the following properties. First, it exemplifies the main ideas of logic: implication, deduction, non-implication, counterargument(or countermodel), logical truth, self-contradiction, consistency,satisfiability, etc. Second, it exemplifies the usual general metaprinciples of logic: contraposition and transitivity of implication, cut laws, completeness,soundness, etc. Third, it is simple enough to be thoroughly grasped by beginners. Fourth, it is obvious enough so that its rules do not appear to be arbitrary or purely conventional. Fifth, it does not invite confusions which must be unlearned later. Sixth, it involves a minimum of presuppositions which are no longer accepted in mainstream contemporary logic. (shrink)