The BankXX system models the process of perusing and gathering information for argument as a heuristic best-first search for relevant cases, theories, and other domain-specific information. As BankXX searches its heterogeneous and highly interconnected network of domain knowledge, information is incrementally analyzed and amalgamated into a dozen desirable ingredients for argument (called argument pieces), such as citations to cases, applications of legal theories, and references to prototypical factual scenarios. At the conclusion of the search, BankXX outputs (...) the set of argument pieces filled with harvested material relevant to the input problem situation.This research explores the appropriateness of the search paradigm as a framework for harvesting and mining information needed to make legal arguments. In this article, we describe how legal research fits the heuristic search framework and detail how this model is used in BankXX. We describe the BankXX program with emphasis on its representation of legal knowledge and legal argument. We describe the heuristic search mechanism and evaluation functions that drive the program. We give an extended example of the processing of BankXX on the facts of an actual legal case in BankXX's application domain — the good faith question of Chapter 13 personal bankruptcy law. We discuss closely related research on legal knowledge representation and retrieval and the use of search for case retrieval or tasks related to argument creation. Finally we review what we believe are the contributions of this research to the understanding of the diverse disciplines it addresses. (shrink)

Aaron Ridley has recently attacked the study of musical ontology—an apparently fertile area in the philosophy of music. I argue here that Ridley's arguments are unsound. There are genuinely puzzling ontological questions about music, many of which are closely related to questions of musical value. While it is true that musical ontology must be descriptive of pre-existing musical practices and that some debates, such as that over the creatability of musical works, have little consequence for questions of musical value, none (...) of this implies that these debates themselves are without value. (shrink)

Aaron Ridley has recently attacked the study of musical ontology—an apparently fertile area in the philosophy of music. I argue here that Ridley's arguments are unsound. There are genuinely puzzling ontological questions about music, many of which are closely related to questions of musical value. While it is true that musical ontology must be descriptive of pre-existing musical practices and that some debates, such as that over the creatability of musical works, have little consequence for questions of musical value, none (...) of this implies that these debates themselves are without value. (shrink)

What can make storytelling “evil” in the sense that the storytelling leads to accepting a view for no good reason, thus allowing ill-reasoned action? I mean the storytelling can be argumentatively evil, not trivially that (e.g.) the overt speeches of characters can include bad arguments. The storytelling can be argumentatively evil in that it purveys false premises, or purveys reasoning that is formally or informally fallacious. My main thesis is that as a rule, the shorter the fictional narrative, the greater (...) the potential for argumentative evil. Here, the notion of length is to be understood such that it is generally a proxy for more abstract features such as how complex and nuanced the piece is. In other argumentative contexts, length generally appears to make no comparable difference. This feature would put fictional narrative arguments in a special class beyond what is determined by obvious features, such as the definitional fact that they in some way(s) collapse two of the four traditional types of discourse: exposition, description, narration, and argument. The nonobvious features that distinguish this class have been a source of puzzlement and inquiry. (shrink)

The article develops and justifies, on the basis of the epistemological argumentation theory, two central pieces of the theory of evaluative argumentation interpretation: 1. criteria for recognizing argument types and 2. rules for adding reasons to create ideal arguments. Ad 1: The criteria for identifying argument types are a selection of essential elements from the definitions of the respective argument types. Ad 2: After presenting the general principles for adding reasons (benevolence, authenticity, immanence, optimization), heuristics are (...) proposed for finding missing reasons, for deductive arguments, e.g., semantic tableaux are suggested. (shrink)

This volume brings together Seth Benardete's studies of Hesiod's Theogony, Homer's Iliad, and Greek tragedy, of eleven Platonic dialogues, and Aristotle's Metaphysics. These essays, some never before published, others difficult to find, span four decades of his work and document its impressive range. Benardete's philosophic reading of the poets and his poetic reading of the philosophers share a common ground that makes this collection a whole. The key, suggested by his reflections on Leo Strauss in the last piece, lies in (...) the question of how to read Plato. Benardete's way is characterized not just by careful attention to the literary form that separates doctrine from dialogue, and speeches from deed rather, by following the dynamic of these differences, he uncovers the argument that belongs to the dialogue as a whole. The "turnaround" such an argument undergoes bears consequences for understanding the dialogue as radical as the conversion of the philosopher in Plato's image of the cave. Benardete's original interpretations are the fruits of this discovery of the "argument of the action.". (shrink)

The purpose of this paper is to clarify the meaning and position of the private language controversy known as Wittgenstein's later philosophy. Several existing positions on the private language have largely focused on exploring its possibilities, and morever it has neglected why Wittgenstein is dealing with the discussion and what role it plays in language-play. In other words, the argument is not 'to shew the fly the way out of the fly-bottle', but rather to provoke philosophical questions. This is (...) not what Wittgenstein ultimately intended. Wittgenstein says that the occurrence of all philosophical problems arises from a misunderstandings of the logic of our language. In order to solve the problems of philosophy, Wittgenstein investigates thoroughly ‘the logic of our language' which are the causes of the philosophical problems. He says, the results of the investigations are 'some piece of plain nonsense and the bumps'. However, it means that the discovery of nonsense is not worthless to us but rather it recognizes us as 'worthy' through 'some piece of plain nonsense and the bumps'. That is because it clearly reveals 'sense' as 'nonsense' through the logic of language. (shrink)

This article reviews the history of the debate over use of biospecimens in research, the legal and ethical arguments that have been presented both in support of and in opposition to such use, court cases and judicial opinions involving disputes between specimen contributors, researchers, and institutions, and public attitudes regarding the use of biospecimens in research. The paper argues that proposed changes to the Common Rule are inadequate to resolve the legal and ethical concerns that have been raised with respect (...) to the use of biospecimens. It argues that there is a need to distinguish between the dual roles — subject and donor — played by contributors of biospecimens. (shrink)

Slavoj Zizek has emerged as the pre-eminent European cultural theorist of the last decade and has been described as the ultimate Marxist/Lacanian cultural studies scholar. His large and growing body of work has generated considerable controversy, yet his texts are not structured as standard academic tomes. In Slavoj Zizek: A Little Piece of the Real, Matthew Sharpe undertakes the difficult task of drawing out an evolving argument from all of Zizek's texts from 1989 to 2001, and reads them as (...) the bearers of a single theoretical project, providing an authoritative, reliable, clearly written and well-structured account of Zizek's demanding body of work. From an exposition of Zizek's social and philosophical critical theory the book moves to a critical analysis of Zizek's theoretical project and its political implications. Sharpe concludes by suggesting that Zizek's work, however, raises as many questions as it answers; questions both about Zizek's theoretical system and to the wider new Left in today's world. (shrink)

In the 1980s, Pollock’s work on default reasons started the quest in the AI community for a formal system of defeasible argumentation. The main goal of this paper is to provide a logic of structured defeasible arguments using the language of justification logic. In this logic, we introduce defeasible justification assertions of the type t : F that read as “t is a defeasible reason that justifies F”. Such formulas are then interpreted as arguments and their acceptance semantics is given (...) in analogy to Dung’s abstract argumentation framework semantics. We show that a large subclass of Dung’s frameworks that we call “warranted” frameworks is a special case of our logic in the sense that Dung’s frameworks can be obtained from justification logic-based theories by focusing on a single aspect of attacks among justification logic arguments and Dung’s warranted frameworks always have multiple justification logic instantiations called “realizations”. We first define a new justification logic that relies on operational semantics for default logic. One of the key features that is absent in standard justification logics is the possibility to weigh different epistemic reasons or pieces of evidence that might conflict with one another. To amend this, we develop a semantics for “defeaters”: conflicting reasons forming a basis to doubt the original conclusion or to believe an opposite statement. This enables us to formalize non-monotonic justifications that prompt extension revision already for normal default theories. Then we present our logic as a system for abstract argumentation with structured arguments. The format of conflicting reasons overlaps with the idea of attacks between arguments to the extent that it is possible to define all the standard notions of argumentation framework extensions. Using the definitions of extensions, we establish formal correspondence between Dung’s original argumentation semantics and our operational semantics for default theories. One of the results shows that the notorious attack cycles from abstract argumentation cannot always be realized as justification logic default theories. (shrink)

Abstract Stephen Schiffer, in his recent book, Remnants of Meaning, argues against the possibility of any compositional theory of meaning for natural language. Because the argument depends on the premise that there is no possible naturalistic reduction of the intentional to the physical, Schiffer's attack on theories of meaning is of central importance for theorists of mind. I respond to Schiffer's argument by showing that there is at least one reductive account of the mental that he has neglected (...) to consider?the computationalist account known as the Representational Theory of Mind. Not only is this view immune from the criticisms Schiffer mounts against other reductivist theories, but it solves problems that arise on Schiffer's own non?reductive account of the relation between the intentional and the physical. (shrink)

The wider topic to which the content of this paper belongs is that of the relationship between formal logic and real argumentation. Of particular potential interest in this connection are held to be substantive arguments constructed by philosophers reputed equally as authorities in logical theory. A number of characteristics are tentatively indicated by the author as likely to be encountered in such arguments. The discussion centers afterwards, by way of specification, on a remarkable piece of argument quoted in Cicero’s (...) dialog On Divination and ascribed to Stoic thinkers. The Stoics’ formal theory of inference is summarily referred to in this context, with special emphasis on their basic deductive schemata (‘indemonstrables’), some of them recognizable as links in the overall structure of the quoted argument. The main lines of Cicero’s criticism of the Stoic argument are next commented upon, with emphasis on his implied view as to the requirements of a good argument. Towards the end of the paper, a few considerations are added on the changes in the prevailing style of argumentation conspicuous in the three famous Roman Stoics. (shrink)

Except in very poor mathematical contexts, mathematical arguments do not stand in isolation of other mathematical arguments. Rather, they form trains of formal and informal arguments, adding up to interconnected theorems, theories and eventually entire fields. This paper critically comments on some common views on the relation between formal and informal mathematical arguments, most particularly applications of Toulmin’s argumentation model, and launches a number of alternative ideas of presentation inviting the contextualization of pieces of mathematical reasoning within encompassing bodies (...) of explicit and implicit, formal and informal background knowledge. (shrink)

Except in very poor mathematical contexts, mathematical arguments do not stand in isolation of other mathematical arguments. Rather, they form trains of formal and informal arguments, adding up to interconnected theorems, theories and eventually entire fields. This paper critically comments on some common views on the relation between formal and informal mathematical arguments, most particularly applications of Toulmin’s argumentation model, and launches a number of alternative ideas of presentation inviting the contextualization of pieces of mathematical reasoning within encompassing bodies (...) of explicit and implicit, formal and informal background knowledge. (shrink)

Two additional sources of evidence are provided in support of localist coding within connectionist networks. First, only models with localist codes can currently represent multiple pieces of information simultaneously or represent order among a set of items on-line. Second, recent priming data appear problematic for theories that rely on distributed representations. However, a faulty argument advanced by Page is also pointed out.

Structured argumentation systems, and their implementation, represent an important research subject in the area of Knowledge Representation and Reasoning. Structured argumentation advances over abstract argumentation frameworks by providing the internal construction of the arguments that are usually defined by a set of (strict and defeasible) rules. By considering the structure of arguments, it becomes possible to analyze reasons for and against a conclusion, and the warrant status of such a claim in the context of a knowledge base represents the main (...) output of a dialectical process. Computing such statuses is a costly process, and any update to the knowledge base could potentially have a huge impact if done naively. In this work, we investigate the case of updates consisting of both additions and removals of pieces of knowledge in the Defeasible Logic Programming (DeLP) framework, first analyzing the complexity of the problem and then identifying conditions under which we can avoid unnecessary computations—central to this is the development of structures (e.g. graphs) to keep track of which results can potentially be affected by a given update. We introduce a technique for the incremental computation of the warrant statuses of conclusions in DeLP knowledge bases that evolve due to the application of (sets of) updates. We present the results of a thorough experimental evaluation showing that our incremental approach yields significantly faster running times in practice, as well as overall fewer recomputations, even in the case of sets of updates performed simultaneously. (shrink)

Arthur Prior’s argument for the A-theory of time in “Thank Goodness That’s Over” is perhaps his most famous and well-known non-logical work. Still, I think that this paper is one of his most misunderstood works. Because of this, much of its brilliance has yet to be properly appreciated. In this paper, I suggest that the explanation of this is that it has been treated as though it were following the standard model for a piece of Analytic philosophy. That is, (...) it has been assumed that what Prior was doing was deductively demonstrating the truth of a proposition which can be discussed via any sentences with the same semantic content. Here, I argue that this assumption is wrong on two fronts: Most importantly, the strongest reading of the structure of Prior’s argument is as an abduction rather than as a deduction. Many of the most important lessons of the argument are lost by focusing on the bare propositional content of its premise and conclusion statements. In other words, we can learn as much from the manner in which this argument is presented and expressed as we can from that which is expressed. (shrink)

Anselm's ontological argument is one of the most fascinating, most controversial, and most misunderstood arguments in the entire history of Western thought. By centring the argument firmly in the Neoplatonic tradition within which Anselm was writing, Understanding Anselm's Ontological Argument sheds fresh light and clarity on this enigmatic piece of philosophy. It argues that, far from resting upon a fallacy or illegitimately attempting to define God into existence, Anselm's argument is a powerful and plausible philosophical proof, (...) and deserves to be taken seriously as such. Written to be understandable for specialists and non-specialists alike, Understanding Anselm's Ontological Argument is ideal for scholars and researchers in philosophy of religion and philosophy in the Middle Ages (especially Neoplatonism) as well as for medievalists in general. (shrink)

I analyze and criticize Naomi Scheman's argument for the claim that psychological individualism-the thesis that psychological states are entities or particulars over which psychological theories may quantify-has no legitimate philosophical backing and is instead an element of patriarchal ideology. I conclude that Scheman's argument is flawed and that her thesis is false. Psychological individualism is perfectly compatible with and may even be required by feminist political theory.

Wellman identified three types of conductive arguments, the third of which contains both pro and counter-considerations in the same piece of reasoning. This paper provides a pragma-dialectical analysis of this type of argumentation, with special focus on argumentation reconstruction. It argues that the account of pro/con argumentation in the framework of argument-as-product has problems solvable by a pragma-dialectical approach. The paper asserts that pro/con argumentation should be analyzed as a dialectical strategy of a protagonist, where acknowledgement of counter-considerations shows (...) that the antagonist’s reasons have been taken into consideration, although the pro-considerations override them. Thus, the pro-considerations of pro/con argumentation should be interpreted as the protagonist’s overriding defeaters of the antagonist’s counter-arguments, the protagonist incorporating the latter as counter-considerations. The paper further argues that the pragma-dialectical framework needs an additional conceptual tool to properly reconstruct complex forms of pro/con argumentation. Finally, the pragma-dialectical approach to reconstruct pro/con argumentation has several advantages, especially to a more logical-structural approach to complex pro/con argumentation. (shrink)

Abstract. The notion of similarity has been studied in many areas of Computer Science; in a general sense, this concept is defined to provide a measure of the semantic equivalence between two pieces of knowledge, expressing how “close” their meaning can be regarded. In this work, we study similarity as a tool useful to improve the representation of arguments, the interpretation of the relations between arguments, and the semantic evaluation associated with the arguments in the argumentative process. In this (...) direction, we present a novel mechanism to determine the similarity between two arguments based on descriptors representing particular aspects associated with these arguments. This mechanism involves a comparison process influenced by the context in which the process develops, where this context provides the relevant aspects that need to be analyzed in the application domain. Then, we use this similarity measure as a quantity to compute the result of attacks and supports in the argumentation process. These valuations, applied to a Bipolar Argumentation Frameworks, allowed us to refine the argument relations, providing the tools to establish a family of new argumentation semantics that considers the similarity between arguments as a crucial part for the argumentation process. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:The Logic Pamphlets of Charles Lutwidge Dodgson and Related PiecesIrving H. AnellisFrancine F. Abeles, editor. The Logic Pamphlets of Charles Lutwidge Dodgson and Related Pieces. The Pamphlets of Lewis Carroll, 4. New York-Charlottesville-London: Lewis Carroll Society of North America-University Press of Virginia, 2010. Pp. xx + 271. Cloth, $75.00.Until William Bartley’s rediscovery and reconstruction of Dodgson’s lost Part II of Symbolic Logic, Lewis Carroll’s reputation in logic, (...) when taken seriously, rested upon his few published articles on logical paradoxes and puzzles, while his published books, The Game of Logic and Symbolic Logic, were regarded as suitable perhaps as pedagogical tools, but dismissed otherwise as amusements, on a par with the Alice works. Richard Braithwaite asserted (“Lewis Carroll as Logician”) that “Carroll regarded formal and symbolic logic not as a corpus of systematic knowledge about valid thought nor yet as an art for teaching a person to think correctly.” He suggested that Dodgson used his pseudonym for his popular and whimsical writings, reserving his legal name only for his serious mathematical products. Philosophers practicing linguistic analysis in their assault on nonsense deriving from misuse of language meanwhile developed an interest in Carroll (e.g. George Pitcher, “Wittgenstein, Nonsense, and Lewis Carroll”). Abeles, on the contrary, stresses the seriousness of Dodgson’s pedagogical and popularizing mission (195–99).Bartley’s discovery opened the door for reevaluating Dodgson as a serious logician, and Abeles has been in the forefront of that reevaluation. Her general introduction and introductions to the main divisions of this collection of Carroll’s publications (and additional material from his Nachlass and a handful of publications of others, composed in response to Carroll’s published articles) place his serious logical work and its significance in historical perspective, providing a deeper, more sophisticated view than found in Bartley’s “Editor’s Introduction” to Lewis Carroll’s Symbolic Logic. Abeles also offers brief introductions to the individual entries, which describe their physical characteristics and circumstances of composition.Dodgson aligned with the majority of those British logicians of his day, starting with George Boole, who understood formal logic to be Aristotelian syllogistic, and symbolic logic to be syllogistic logic expressed algebraically. His notational innovation was employing indices to terms so that, independently of the arrangement of terms, propositions could easily be read; thus, “xy0” can be read as “no x are y” or “no y are x” and “x1y0” as “all x are not y” or “no x are y”. In dealing with the classical elimination problem in the class calculus—to determine the maximum information, without duplications, obtainable from a given set of premises—Dodgson in his later work and unpublished letters anticipated several concepts of automated theorem proving.Central to both geometry and to formal logic are the rules of logical inference that establish the validity of arguments and guarantee that conclusions inferred from true [End Page 506] premises are true. The modern analytic tableaux, or tree method, is a fundamental tool in this regard, both for deriving theorems and for determining the validity or invalidity of the proofs for propositional calculus and first-order predicate calculus.Introducing his reconstruction of Part II of Symbolic Logic, Bartley noted that, along with the logic diagrams that Carroll devised, he also devised a tableau method that strongly resembled Beth’s semantic tableaux. Abeles went more deeply and convincingly into that resemblance in her earlier research. Beth’s tableaux, together with Hintikka’s model sets, were the direct ancestors of Smullyan’s analytic tableaux, which in turn are the theoretical basis for the Robinson resolution method that continues to be central to much work in programming logic.Abeles has also shown that the work in Studies in Logic by Charles Peirce and his logic students at Johns Hopkins University served as a source of inspiration for Dodgson. More critically, she demonstrated that Dodgson devised and employed the tree method for carrying out proofs of syllogisms and chains of syllogisms, or soriteses, in Part II of Symbolic Logic (see her “Lewis Carroll’s Method of Trees: Its Origins in Studies in Logic,” Modern Logic 1 [1990]: 25–34). The tree... (shrink)

By presenting a case study based on the argumentative analysis of news in the press, this article introduces and discusses strategic manoeuvring with contextual frames. Drawing on the linguistic notion of frame, I introduce the concept of contextual frame to refer to the news context, that is, the background against which a certain event is presented as a piece of news. I argue that newspapers and journalists make use of contextual frames in the apparently neutral genre of news reporting to (...) propose specific interpretations of the facts at issue, which become the basis for explicit comments and editorials. To show how this works, I investigate in detail a case of newspaper coverage of a complex episode using the pragma-dialectical notion of strategic manoeuvring and the Argumentum Model of Topics to analyse argument schemes. I show that, in the use of contextual frames, there is a prominent relation between presentational devices and topical potential; contextual frames provide the implicit material premises which are at the basis of argumentations through which newspapers interpret and comment on the news. (shrink)

Predictivism, the thesis that all things being equal a hypothesis that predicts a piece of evidence is better supported by that evidence than a hypothesis that only accommodates that evidence, comes in strong and weak forms. Interestingly, weak predictivism, which is widely accepted, can be used to formulate a persuasive argument against some forms of external world scepticism. In this article I formulate this predictivist argument and I explain why it deserves serious consideration despite the fact that it (...) only succeeds as a response to some forms of external world scepticism. (shrink)

In 2016, this Journal published an article by Rob Lawlor1 on what we might call the acceptance-refusal asymmetry in competence requirements. This is the view that there can be cases in which a patient is sufficiently competent to accept a treatment, but not sufficiently competent to refuse it. Though the main purpose of Lawlor’s paper was to distinguish this asymmetry from various other asymmetries with which it has sometimes been confused,1 Lawlor also presented a brief case in favour of it. (...) Developing an earlier argument of Ian Wilks’,2 3 Lawlor argued that, when the risks associated with refusing a treatment are graver than those associated with accepting it, a higher level of competence may be required to refuse a treatment than to accept it. This claim could have important implications for the law, since determinations of competence often play a central role in determining the lawfulness of refusing or imposing a treatment. Indeed, the acceptance-refusal asymmetry in competence requirements, or something close to it, has played an important role in court judgments.2 However, Lawlor himself suggests that his conclusion will have practical implications only in a narrow range of cases.3 In this issue, Pickering, Giles Newton-Howes and Simon Walker respond to Lawlor’s piece.4 They deny that competence requirements should depend on the level of risk associated with a decision, and thus that there is any basis for the acceptance-refusal asymmetry in competence requirements. Part of the authors’ argument involves contesting the way in which Lawlor uses cases to support his view. In one case cited by Lawlor—and drawn from Wilks—we are invited to consider a whether …. (shrink)

In this piece, I propose a reading of Plato’s Gorgias that pays special attention to the role that the fictional audience plays in the unfolding of the dialogue. To this end, I use some of the insights that Chaïm Perelman and Lucie Olbrechts–Tyteca conveyed in their seminal work, The New Rhetoric: A Treatise on Argumentation in order to argue that thinking about the way in which Socrates’ arguments are shaped by the different audiences that Gorgias, Polus, and Callicles aim to (...) address and represent provides us with a new hermeneutical understanding of what is at stake in each of the different interactions Socrates engages in throughout the dialogue. In unpacking the way in which Socrates appropriates Gorgias’ particular audience, transforms Polus’ universal audience, and challenges Callicles’ elite audience, I provide an outline of the difficulties that Plato’s Socrates has to overcome in order to achieve the ‘community of minds’ that Perelman and Olbrechts–Tyteca identify as the bedrock of fruitful argumentation. Having done this, in the last section I turn to Plato’s Phaedrus, for the purpose of making evident that thinking about Plato’s deployment of rhetorical audiences is a crucial step in the effort to expose the implicit continuity that links the discussion of rhetoric delivered by the Gorgias to that of the Phaedrus. (shrink)

Frank Jackson’s knowledge argument is a very influential piece of reasoning that seeks to show that colour experiences constitute an insoluble problem for science. This argument is based on a thought experiment concerning Mary. She is a vision scientist who has complete scientific knowledge of colours and colour vision but has never had colour experiences. According to Jackson, upon seeing coloured objects, Mary acquires new knowledge that escapes her complete scientific knowledge. He concludes that there are facts concerning (...) colour experiences that scientific knowledge can neither describe nor explain. Specifically, these facts involve the occurrence of certain non-physical properties of experiences that he calls qualia. The present research considers whether a plausible formulation of the hypothesis that science can accommodate colour experiences is threatened by a version of the knowledge argument. The specific formulation of this problem has two motivations. Firstly, before investigating whether the knowledge argument raises a problem for the claim that science can account for colour experiences, we need a plausible formulation of this claim. I argue that the idea that science can accommodate colour experiences can be formulated as the modest reductionism hypothesis. Roughly speaking, this is the hypothesis that a science that can be explanatory interfaced with current physics of ordinary matter can account for conscious experiences. Secondly, an unintelligible premise figures in Jackson’s version the knowledge argument. Namely, it is assumed that Mary possesses a complete scientific knowledge. Nevertheless, the type of strategy involved in Jackson’s argument can be used to target modest reductionism. By considering contemporary psychophysics and neuroscience, I characterise Mary’s scientific knowledge. First, this characterisation is intelligible. In fact, it is elaborated on the basis of descriptions and explanations of colour experiences involved in current physics and neuroscience. Second, a supporter of modest reductionism can assume that the scientific knowledge ascribed to Mary might account for colour experiences. The main conclusion of the present research is that our version of the knowledge argument fails to threaten the modest reductionism hypothesis. In fact, I endorse what can be called the “two ways of thinking” reply to the knowledge argument. According to this response, the knowledge argument shows that there are different ways of thinking about colour experiences. One way of thinking is provided by scientific knowledge. The other way of thinking is provided by our ordinary conception of colour experiences. However, the existence of these two ways of thinking does not imply the existence of facts and properties that escape scientific knowledge. It might be the case that the ordinary way of thinking about colour experience concerns facts and properties described and explained by science. The principal conclusion of the research results from two investigations. The first line of research aims to reveal and evaluate the implicit assumptions that figure in the knowledge argument. The main body of the research is dedicated to this task. The principal result of this investigation is that the knowledge argument must rely on an account of introspective knowledge of colour experiences. I argue that an inferential model of introspection provides such account. On this model, Mary’s capacity to hold beliefs about her colour experiences when she sees coloured objects requires her mastery of colour concepts. The second main investigation seeks to justify the two ways of thinking strategy. As many opponents and supporters have recently started to realise, this strategy might be charged with being ad hoc. I offer a distinctive justification of this reply to the knowledge argument. Assuming the account of introspection mentioned above, the existence of visual recognitional colour concepts might justify this strategy. A person possesses these concepts when she is able to determine the colours of objects simply by having visual experiences. (shrink)

Continuous sedation until death (CSD), the act of reducing or removing the consciousness of an incurably ill patient until death, often provokes medical–ethical discussions in the opinion sections of medical and nursing journals. Some argue that CSD is morally equivalent to physician-assisted death (PAD), that it is a form of “slow euthanasia.” A qualitative thematic content analysis of opinion pieces was conducted to describe and classify arguments that support or reject a moral difference between CSD and PAD. Arguments pro (...) and contra a moral difference refer basically to the same ambiguous themes, namely intention, proportionality, withholding artificial nutrition and hydration, and removing consciousness. This demonstrates that the debate is first and foremost a semantic rather than a factual dispute, focusing on the normative framework of CSD. Given the prevalent ambiguity, the debate on CSD appears to be a classical symbolic struggle for moral authority. (shrink)

In 2016, this Journal published an article by Rob Lawlor1 on what we might call the acceptance-refusal asymmetry in competence requirements. This is the view that there can be cases in which a patient is sufficiently competent to accept a treatment ( viz., to give consent to it), but not sufficiently competent to refuse it ( viz., to withhold consent to it). Though the main purpose of Lawlor’s paper was to distinguish this asymmetry from various other asymmetries with which it (...) has sometimes been confused,1 Lawlor also presented a brief case in favour of it. Developing an earlier argument of Ian Wilks’,2 3 Lawlor argued that, when the risks associated with refusing a treatment are graver than those associated with accepting it, a higher level of competence may be required to refuse a treatment than to accept it. This claim could have important implications for the law, since determinations of competence often play a central role in determining the lawfulness of refusing or imposing a treatment (eg, in England and Wales under the Mental Capacity Act 2005). Indeed, the acceptance-refusal asymmetry in competence requirements, or something close to it, has played an important role in court judgments.2 However, Lawlor himself suggests that his conclusion will have practical implications only in a narrow range of cases.3 In this issue, Pickering, Giles Newton-Howes and Simon Walker (henceforth ‘the authors’) respond to Lawlor’s piece.4 They deny that competence requirements should depend on the level of risk associated with a decision, and thus that there is any basis for the acceptance-refusal asymmetry in competence requirements. Part of the authors’ argument involves contesting the way in which Lawlor uses cases to support his view. In one case cited by Lawlor—and drawn from Wilks—we are invited to consider a whether …. (shrink)

The paper examines Wesley Salmon’s claim that the primary role of plausibility arguments in the history of science is to impose constraints on the prior probability of hypotheses. A detailed look at Copernicanism and Darwinism and, more briefly, Rutherford’s discovery of the atomic nucleus reveals a further and arguably more important role of plausibility arguments. It resides in the consideration of likelihoods, which state how likely a given hypothesis makes a given piece of evidence. In each case the likelihoods raise (...) the probability of one of the competing hypotheses and diminish the credibility of its rival, and this may happen either on the basis of ‘old’ or ‘new’ evidence.Keywords: Copernicanism; Darwinism; Atom models; Bayesianism; Likelihoods; Probability arguments. (shrink)

Kant rejects the ontological argument on the grounds that the ontological argument inescapably must assume that existence is a “determination” or “real predicate,” which it is not. Most understand Kant’s argument for this claim to be premised upon his distinctive proto-Fregean theory of existence. But this leaves Kant dialectically vulnerable: the defender of the ontological argument can easily reject this as question-begging. I show that Kant relies upon two distinct arguments, both of which contend that the (...) claim that existence is a determination is inconsistent with bedrock ontological set pieces assumed by rationalist defenders of the ontological argument. (shrink)

In this paper, I explore the potential of systematically studying the linguistic surface of discourse for the purposes of identifying markers of argumentative moves and other related categories, such as types of arguments and argumentative strategies. Such a list of argumentative markers can prove useful for the (semi)automatic treatment of a large corpus of texts. After reviewing literature on the linguistic realization of argumentative moves as well as literature on the subject of discourse markers, it becomes clear that the search (...) for representative items of argumentative markers cannot be restricted to those elements marking relations but that it should also include elements that signal a certain function that is of pertinence to argumentative analysis. In this view, argumentative markers can be any single or complex lexical expression as well as a discursive configuration whose presence in a given utterance marks that utterance or the one preceding/following it, or a larger piece of discourse as having a certain argumentative function (as an argumentative move, a type of argument or an argumentative strategy). Examples taken from a French corpus on the controversy surrounding the development and applications of nanotechnology currently under study are used to illustrate the different types of argumentative markers proposed. (shrink)

The continuous increase in criminal activities in all countries, namely the offences which undermine the interests of contemporary societies, call for the need to fight them in a more successful manner. In this way, the country through its mechanisms detects the criminal offences, the criminal liability and imposes the meritorious sanction to the perpetrators of such criminal offences, in full compliance with the danger caused by them. However, the court and other parties in the proceedings in any case before the (...) sanction is imposed, are involved in a complicated evidentiary proceedings related to the grounded suspicion that such offence was a criminal offence, the special mitigating and aggravating circumstances, that the person involved was conscious, that he committed the offence intentionally or negligently, his mental state, etc. All these have to be supported by facts through conclusive pieces of evidence. In parallel with the overall development of science and technology, the evidentiary procedure has evolved and it provides a greater possibility to argue our facts. This paper shall make efforts to highlight some of the most important issues related to the evidentiary procedure, such as: What is the evidence? What evidence should be provided in a certain criminal case? What is the importance of the evidence in a criminal matter? What should be the credibility and the evidentiary value of a piece of evidence? The research done in this paper shall apply the analytical method and the paper shall also include the conclusions that were reached as well as the recommendations. (shrink)

Derk Pereboom's Four-Case Argument is among the most famous and resilient manipulation arguments against compatibilism. I contend that its resilience is not a function of the argument's soundness but, rather, the ill-gotten gain from an ambiguity in the description of the causal relations found in the argument's foundational case. I expose this crucial ambiguity and suggest that a dilemma faces anyone hoping to resolve it. After a thorough search for an interpretation which avoids both horns of this (...) dilemma, I conclude that none is available. Rather, every metaphysically coherent interpretation invites either a hard- or soft-line reply to Pereboom's argument. I then consider a recharacterization of the dilemma which seems to clear the way for the defence of a revised Four-Case Argument. I address this rejoinder by identifying a still more fundamental problem shared by all viable interpretations of the manipulation cases, showing that each involves a type of manipulation which undermines the victim's agency. Because this diagnosis supports a soft-line reply to every viable interpretation of the argument and can be endorsed by any compatibilist, I consider it the final piece of the Soft-line Solution to the Four-Case Argument. Finally, I suggest a new taxonomy of manipulation arguments, arguing that none that employs the suppressive variety of manipulation found in Pereboom's argument offers a threat to compatibilism. (shrink)

Frank Jackson’s famous Knowledge Argument moves from the premise that complete physical knowledge about experiences is not complete knowledge about experiences to the falsity of physicalism. Some physicalists (e.g., John Perry) have countered by arguing that what Jackson’s Mary, the perfect scientist who acquires all physical knowledge about experiencing red while being locked in a monochromatic room, lacks before experiencing red is merely a piece of recognitional knowledge of an identity, and that since lacking a piece of recognitional knowledge (...) of an identity does not entail lacking any pieces of knowledge of worldly facts, physicalism is safe. I will argue that what Mary lacks in her room is not merely a piece of recognitional knowledge of an identity and that some physicalists have failed to see this because of a failure to appreciate that Mary’s epistemic progress when she first experiences red has two different stages. While the second epistemic stage can perhaps be plausibly considered as acquiring merely a piece of recognitional knowledge of an identity, there is good reason to think that the first epistemic stage cannot be thus considered. (shrink)

According to the ?story model? a juror constructs an implicit mental model of a story telling what happened as the basis for the verdict choice. But the explicit justification of a verdict choice could take the form of a story (knowledge telling) or the form of a relational (knowledge-transforming) argument structure that brings together diverse, non-chronologically related pieces of evidence. The study investigates whether people tend towards knowledge telling or knowledge transforming, and whether use of these argument (...) structure types are related to skilled argument and epistemic understanding. A sample of people on jury duty chose and justified verdicts in two abridged cases. Participants tended to display the same argument structure and argument skill across cases. Those using knowledge-transforming structures were more successful at the juror argument skills task and had a higher level of epistemic understanding. The discussion suggests that jurors approach their task with an epistemic orientation towards knowledge telling or knowledge transforming. (shrink)

So-called ‘reified temporal logics’ were introduced by researchers in Artificial Intelligence (AI) in the early 1980s, and gave rise to a long-running series of debates concerning the proper way to represent states, events, causation, action, and other notions identified as crucial to the knowledge representation needs of AI. These debates never resulted in a definitive resolution of the issues under discussion, and indeed continue to produce aftershocks to the present day; none the less, we are now sufficiently far removed in (...) time from their heyday for it to be a worthwhile exercise to stand back and review them as a connected piece of history. (shrink)

Derk Pereboom's Four-Case Argument is among the most famous and resilient manipulation arguments against compatibilism. I contend that its resilience is not a function of the argument's soundness but, rather, the ill-gotten gain from an ambiguity in the description of the causal relations found in the argument's foundational case. I expose this crucial ambiguity and suggest that a dilemma faces anyone hoping to resolve it. After a thorough search for an interpretation which avoids both horns of this (...) dilemma, I conclude that none is available. Rather, every metaphysically coherent interpretation invites either a hard- or soft-line reply to Pereboom's argument. I then consider a recharacterization of the dilemma which seems to clear the way for the defence of a revised Four-Case Argument. I address this rejoinder by identifying a still more fundamental problem shared by all viable interpretations of the manipulation cases, showing that each involves a type of manipulation which undermines the victim's agency. Because this diagnosis supports a soft-line reply to every viable interpretation of the argument and can be endorsed by any compatibilist, I consider it the final piece of the Soft-line Solution to the Four-Case Argument. Finally, I suggest a new taxonomy of manipulation arguments, arguing that none that employs the suppressive variety of manipulation found in Pereboom's argument offers a threat to compatibilism. -/- (For direct download option, search Kristin M. Mickelson, Soft-line Solution). (shrink)

My dissertation deals with the Master Argument of Diodorus Cronus, a contemporary of Aristotle's. The argument was one of the most famous pieces of temporal and modal reasoning in ancient philosophy. It purports to prove that a proposition is possible if and only if it is true or will be true. The argument runs as follows: Everything that is past and true is necessary; The impossible does not follow the possible; Therefore, nothing is possible which neither (...) is nor will be true. Unfortunately, all accounts of the Master that have survived are so sketchy that we cannot determine whether the argument is valid or not. ;Several reconstructions of Diodorus' argument have been proposed. The purpose of the reconstructions is to show, using the resources of modal and tense logics, that the argument is valid. I analyze and critique most of these proposals, arguing in the final chapter for a new reconstruction which I believe to be more defensible than existing ones. ;The Master Argument is important for several reasons. It elicited much discussion among ancient philosophers and logicians both because of its reduction of modal logic to tense logic and its bearing on the free will/determinism debate. But, its influence also extends to contemporary philosophy and logic. In the 1950s and 60s, the Master inspired formal work on Diodorean systems. Much of the work on the calculus of tenses, e.g., by Prior, was undertaken in view of investigating Diodorus' argument. Finally, the literature that the argument has spawned has enriched and deepened our understanding of the connections between matters modal and temporal. (shrink)

A Bayesian network (BN) is a graphical model of uncertainty that is especially well suited to legal arguments. It enables us to visualize and model dependencies between different hypotheses and pieces of evidence and to calculate the revised probability beliefs about all uncertain factors when any piece of new evidence is presented. Although BNs have been widely discussed and recently used in the context of legal arguments, there is no systematic, repeatable method for modeling legal arguments as BNs. Hence, (...) where BNs have been used in the legal context, they are presented as completed pieces of work, with no insights into the reasoning and working that must have gone into their construction. This means the process of building BNs for legal arguments is ad hoc, with little possibility for learning and process improvement. This article directly addresses this problem by describing a method for building useful legal arguments in a consistent and repeatable way. The method complements and extends recent work by Hepler, Dawid, and Leucari (2007) on object-oriented BNs for complex legal arguments and is based on the recognition that such arguments can be built up from a small number of basic causal structures (referred to as idioms). We present a number of examples that demonstrate the practicality and usefulness of the method. (shrink)

In a recent paper, Guy Kahane asks whether God’s existence is something we should want to be true. Expanding on some cryptic remarks from Thomas Nagel, Kahane’s informative and wide-ranging piece eventually addresses whether personal anti-theism is justified, where personal anti-theism is the view that God’s existence would make things worse overall for oneself. In what follows, I develop, defend, but ultimately reject the Meaningful Life Argument, according to which if God’s existence precludes the realization of certain goods that (...) seem to an agent to constitute a meaningful life, it is rational for an agent both to believe that personal anti-theism is true and to prefer that God not exist. (shrink)

A necessary companion to the acclaimed Stone Reader, Modern Ethics in 77 Arguments is a landmark collection for contemporary ethical thought. Since 2010, The Stone—the immensely popular, award-winning philosophy series in The New York Times—has revived and reinterpreted age-old inquires to speak to our modern condition. This new collection of essays from the series does for modern ethics what The Stone Reader did for modern philosophy. New York Times editor Peter Catapano and best-selling author and philosopher Simon Critchley have curated (...) an unparalleled collection that illuminates just how imperative ethical thinking is in our day-to-day life. Like its predecessor, Modern Ethics in 77 Arguments explores long-standing ethical and moral issues in light of our most urgent dilemmas. Divided into twelve sections, the book opens with a series of broad arguments on existence, human nature and morality. Indeed, “big” questions of the human condition are explored by some of our best-known and most accomplished living philosophers: What is the meaning of our existence? Should we really “do what we love”? How should we respond to evil? Is pure altruism possible? Along with these examinations of timeless moral conundrums, readers will find arguments in the more contentious areas of religion and government: Can we have a moral life without God? Does it really matter if God exists? Is patriotism moral? Accessible and provocative, these pieces expose the persistence of the most basic themes and questions of moral and ethical life. Many of the essays stress the crucial importance of directly engaging the most pressing moral dilemmas in modern life. Should we be the last generation, knowing all the harm we’ve done to our planet? Should we embrace our inner carnivores, or swear off all animal products? From gun control and drone warfare to the morals of marriage and reproduction, readers will view familiar debates in new, surprising lights. The editors have meticulously arranged this book to reflect a wide range of perspectives, voices and rhetorical strategies. By directly addressing some of the most complex and troubling issues we face today—racial discrimination, economic inequality, immigration, citizenship and more—the volume reveals the profound power of ethics in shaping our perceptions of nearly every aspect of our lives. A jargon-free, insightful compendium, Modern Ethics in 77 Arguments offers a panoramic view of morality and is a critical addition to The Stone Reader that will energize and enliven the world of ethical thought in both the classroom and everyday American life. Including… The Meaningfulness of Lives by Todd May * A Life Beyond “Do What You Love” by Gordon Marino * Evolution and our Inner Conflict by Edward O. Wilson * Morals Without God? by Frans de Waal * Does It Matter Whether God Exists? by Gary Gutting * The Moral Hazard of Drones by John Kaag and Sarah Kreps * Can Refugees Have Human Rights? by Omri Boehm * Dear White America by George Yancy * Girlfriend, Mother, Professor? by Carol Hay * The End of “Marriage” by Laurie Shrage * When Vegans Won’t Compromise by Bob Fischer and James McWilliams * Should This Be the Last Generation? by Peter Singer. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The End of Argument: Knowledge and the InternetSimon Barker1. Fermat's last videoModern mathematics is nearly characterized by the use of rigorous proofs. This practice, the result of literally thousands of years of refinement, has brought to mathematics a clarity and reliability unmatched by any other science.(Jaffe and Quinn 1993, 1)The above passage illustrates how mathematicians have come to esteem rigorous argument as the most important feature of (...) their subject. In turn, the example of mathematics has, over a long period, made rigorous argument an ideal in many other areas of inquiry—from the sciences to theology. How interesting it is, then, that some mathematicians have begun to question that ideal. Gian-Carlo Rota, for example, has said that the axiomatic method of presentation in mathematics has now reached "the zenith of fanaticism" and that the identification of mathematics with this method "is having a corrosive effect on the way mathematics is viewed by scientists in other disciplines" (1997, 189). William Thurston has blamed the formality of contemporary mathematics for "the whole system of generally poor communication" within the subject. According to Thurston, ordinary conversation between mathematicians can often convey a new solution in a matter of minutes, whereas a formal proof delivered in a seminar will take an hour, and a written article may take several hours or even days to understand. In Thurston's view, this disparity arises precisely because conversationalists go far beyond formal mathematical language:They use gestures, they draw pictures and diagrams, they make sound effects and use body language. Communication is more likely to be two-way, so that people can concentrate on what needs the most attention. With these channels of communication, they are in a much better position to convey what's going on, not just in their logical and linguistic facilities, but in their other mental facilities as well. [End Page 154](Thurston 1994, 166)Sadly, however, mathematicians can only converse like this in private. To reach the rest of their audience, they have to publish in journals. Journal articles are limited to formal language and so must convey results more slowly. Formality, though less efficient, is more publishable.Yet there is hope. Another mathematician, Andrew Odlyzko, has suggested that the unfortunate limitations of printed journals can now be overcome with computers. Computers can allow mathematicians to distribute something more than the traditional style of printed proof. Odlyzko suggests an electronic scrapbook that would include a video of each author lecturing about their results (Odlyzko 1995, 90-91). Fermat's Last Video? The point is that if these suggestions come to pass, publication of mathematical results will no longer involve stripping away informal features and replacing them with formal language, as if rigorous argument was all that mattered. Instead, the informal features that help mathematicians to understand new results so quickly in ordinary conversation will be given equal air time. The ideal, for publication at least, will be less formal.Is this just a gimmick? Is it something that will go away, if we shut our eyes, leaving the centuries old ideal of formal proof intact? What I wish to discuss here are some of the reasons why mathematics, as well as other branches of knowledge, may adopt greater informality and may cease to idealise rigorous argument.2. From parents to premissesI will start by examining how and why rigorous, formal argument became an ideal in the first place. This is a long story, going back to the origins of Western literature; so I am forced to be brief.1 I will start with the matter of how argument became an ideal. The first thing we should recognise is that even in the West's earliest literary works—the Iliad and the Odyssey—there are plenty of rudimentary arguments, particularly in the speeches put into the mouths of the major characters. Nevertheless, for sustained or rigorous argument, we must look a little harder. Havelock has put forward the following passage as an example of unusual rigour in early literature (Havelock 1966b, 209). The passage is taken from the start of Hesiod's poem, Works and Days, a piece of wisdom literature almost as old as... (shrink)

In this brief piece, Jennifer McErlean comments on Kevin Elliott’s thesis that we should decrease or even cease philosophical efforts to build more inclusive biocentric ethical accounts and instead increase efforts to build indirect anthropocentric arguments. While McErlean agrees that it is sensible to marshal a multiplicity of standpoints to strengthen policies that protect the natural world, she disagrees that philosophers no longer need to consider whether nature has intrinsic value. Two specific criticisms are offered. One is that indirect arguments (...) are utilitarian and ethicists ought not to limit themselves a morality of consequences. The second is that underlying principles will make a difference, so that even if anthropocentric arguments currently converge with biocentric ones, we should not anticipate this will continue in future instances. (shrink)

Radical Embodied Cognition is an anti-representationalist approach to the nature of basic cognition proposed by Daniel Hutto and Erik Myin. While endorsing REC’s arguments against a role for contentful representations in basic cognition we suggest that REC’s ‘teleosemiotic’ approach to intentional targeting results in a ‘grey area’ in which it is not clear what kind of causal-explanatory concept is involved. We propose the concept of constraint-evading surrogacy as a conceptual basis for REC’s account of intentional targeting. The argument is (...) developed via a reconsideration of Peter Godfrey-Smith’s ‘environmental complexity thesis’. We show how constraint-evading surrogacy clarifies REC’s account of intentionality by specifying the role of external natural signs and certain internal states. We argue that the resulting view of intentionality can be extended to proto-biotic autocatalytic systems, offering support for the life-mind continuity thesis. We leave open the question of whether it is helpful to consider constraint-evading surrogacy to be a form of representation, but we suggest that there is a prima facie case for such a view. (shrink)

The Argumentative Adversariality debate is over the question of whether argument must be adversarial. A particular locus of this debate is on skeptical challenges in critical dialogue. The Default Skeptical Stance in argument is a practical manifestation of argumentative adversariality. Views about the on-the-ground value of the DSS vary. On one hand, in “The Social & Political Limitations of Philosophy”, Phyllis Rooney argues that the DSS leads to epistemic injustice. On the other, Allan Hazlett in his recent piece (...) “Critical Injustice” argues for the virtues of the skeptical stance in terms of epistemic justice. Both Rooney and Hazlett are concerned with the role skeptical engagement plays in argument, but they assign opposite values to it. In this essay, I review Rooney and Hazlett’s examples and show that the epistemic dysfunction in the two scholar’s going cases is one and the same, and argue that the cause of both is a lack of proper skeptical engagement. Skeptical engagement is a requirement for epistemic justice. Together and constitute an initial defense of the Adversarialist position against objections regarding the social epistemic risk of the skeptical stance. (shrink)

Paul's letter to the Philippians, a dense and dynamic piece of rhetoric, is too often overlooked in Pauline interpretation. Careful, critical analysis of the argument in the letter as a whole, as well as its famous hymn, attunes the interpreter to the ethical and political dimensions of this important document.

In order to carry out “a great and important piece of work, and that in a complete and lasting way”, Kant claims that one must join one’s “effort with that of the author”. The reading of a work, therefore, must try to embrace “the articulation or structure of the system, which yet matters most when it comes to judging its unity and soundness”. This structure and articulation, however, may not be so easily accessible; it may, rather, be latent under “bright (...) colours [that] paint over and make unrecognizable” the argument’s essence, often confusing the reader, who “cannot quickly enough attain a survey of the whole”. Now, it would be expected, then, that Kant, condemning such “ornaments”, would not employ those resources I n his writings. However, it is curious that not infrequently he makes use of such “bright colours”. The present paper aims at pointing out some passages of Kant's theoretical and practical philosophy in which it is possible to identify such “colouring”. (shrink)