The implicit dimension of enthymemes is investigated from a pragmatic perspective to show why a premise can be left unexpressed, and how it can be used strategically. The relationship between the implicit act of taking for granted and the pattern of presumptive reasoning is shown to be the cornerstone of kairos and the fallacy of straw man. By taking a proposition for granted, the speaker shifts the burden of proving its un-acceptability onto the hearer. The resemblance of the (...) tacit premise with what is commonly acceptable or has been actually stated can be used as a rhetorical strategy. (shrink)

This paper presents preliminary findings of the project [name omitted for anonymity]. This interdisciplinary project builds on Argumentation theory and developmental sociocultural psychology for the study of children’s argumentation. We reconstruct children’s inferences in adult-child and child-child dialogical interaction in conversation in different settings. We focus in particular on implicit premises using the Argumentum Model of Topics for the reconstruction of the inferential configuration of arguments. Our findings reveal that sources of misunderstandings are more often than not due (...) to misalignments of implicit premises between adults and children; these misalignments concern material premises rather than the inferential-procedural level. (shrink)

This paper focuses on an explanation in a newspaper article: why new European Union citizens will come to the UK from Eastern Europe (e.g., because of available jobs). Using a corpus-based method of analysis, I show how regular target readers have been positioned to generate premises in dialogue with the explanation propositions, and thus into an understanding of the explanation as an argument, one which contains a biased conclusion not apparent in the text. Employing this method, and in particular (...) ‘corpus comparative statistical keywords’, I show how two issues can be freshly looked at: implicit premise recovery; the argument/explanation distinction. (shrink)

According to one picture of the mind, decisions and actions are largely the result of automatic cognitive processing beyond our ability to control. This picture is in tension with a foundational principle in ethics that moral responsibility for behavior requires the ability to control it. The discovery of implicit attitudes contributes to this tension. According to the ability argument against moral responsibility, if we cannot control implicit attitudes, and implicit attitudes cause behavior, then we cannot be morally (...) responsible for that behavior. The purpose of this paper is to refute the ability argument. Drawing on both scientific evidence in cognitive science and philosophical arguments in ethics and action theory, I argue that it is invalid and unsound because current evidence is insufficient to establish the premises that implicit attitudes are uncontrollable, that they significantly cause behavior, that responsibility always requires ability, and that even if uncontrollable attitudes did fully cause behavior, this entails that the behavior they cause is uncontrollable. The rejection of the ability argument questions the priority of the unconscious over the conscious mind in cognitive science, deprioritizes ability in theories of moral responsibility in ethics, and provides a strong reason to uphold moral responsibility for implicitly biased behavior. (shrink)

A person with one dollar is poor. If a person with n dollars is poor, then so is a person with n + 1 dollars. Therefore, a person with a billion dollars is poor. True premises, valid reasoning, a false a conclusion. This is an instance of the Sorites-paradox. (There are infinitely many such paradoxes. A man with an IQ of 1 is unintelligent. If a man with an IQ of n is unintelligent, so is a man with an (...) IQ of n+1. Therefore a man with an IQ of 200 is unintelligent.) Most attempts to solve this paradox reject some law of classical logic, usually the law of bivalence. I show that this paradox can be solved while holding on to all the laws of classical logic. Given any predicate that generates a Sorites-paradox, significant use of that predicate is actually elliptical for a relational statement: a significant token of "Bob is poor" means that Bob is poor compared to x, for some value of x. Once a value of x is supplied, a definite cutoff line between having and not having the paradox-generating predicate is supplied. This neutralizes the inductive step in the associated Sorites argument, and the would-be paradox is avoided. (shrink)

We report two studies on the effect of implicitly versus explicitly conveying affirmation and denial problems about conditionals. Recently Evans and Handley (1999) and Schroyens et al. (1999b, 2000b) showed that implicit referencing elicits matching bias: Fewer determinate inferences are made, when the categorical premise (e.g., B) mismatches the conditional's referred clause (e.g., A). Also, the effect of implicit affirmation (B affirms not-A) is larger than the effect of implicit denial (B denies A). Schroyens et al. hypothesised (...) that this interaction is due to uncertainty in the case-wise affirmation of the contrast class of negated elements involved in implicit affirmations. In Experiment 1 we tested this hypothesis by manipulating the set size of the conditional clauses. The results confirm that binary sets, where the contrast class is a singleton, eliminate the differential effect of implicit affirmation and denial. With non-binary sets the interaction is not modulated by the scope of the contrast class (3, 5, 9 elements). Experiment 2 further investigated the role of contrast classes by using class inclusion to construct implicit affirmations (Mammal vs Mammal or Monkey) and implicit denial (No-Mammal vs Mammal or Monkey), in addition to the standard implicit problems mediated by contrast-class inclusion [(No-)Mammal/No-Mammal; Reptile; Snake). Findings indicate that class inclusion (Mammal/Monkey; Reptile/ Snake) only marginally affects performance, and is independent of the type of problem. This would suggest that the implicitness problem-type interaction is dependent on constructing contrast classes. However, the experiment failed to replicate the interaction, even on the subset of problems repeating the abstract letter/number format of Experiment 1. Moreover, with the natural binary set-sizes (vowels/consonants) the implicitness effect was eliminated entirely. (shrink)

The most cited sustainability definition, by the World Commission on the Environment and Development, contains a moral imperative, as pointed out by several scholars. While ethical implications have been examined by philosophers and social scientists, concepts such as agricultural sustainability have been challenged less. The present work should contribute to the debate on the implicit moral values of agricultural sustainability and help uncover conflicting moral perspectives regarding agricultural sustainability. Choosing the social dimension of agricultural sustainability as starting point, the (...) idea of conflict interrupting the functionality or longevity of any social system, such as a farm is introduced. Based on the idea of agricultural value chains, different stakeholders’ interests for seven moral conflict scenarios in agriculture and the moral arguments behind them are identified. These are sorted according to ethical theories and argumentation patterns are detected. The three central moral premises, as well as their importance to the sustainability context, are discussed. Finally, working hypotheses are proposed which can help create more comprehensive ideas about the social dimension of agricultural sustainability, furthering the consideration of normative aspects in the context of agricultural sustainability. (shrink)

This thesis promotes a therapeutic revision of fundamental assumptions in contemporary ontological thought. I show that none of the extant standard theories of objects provides a viable account of the numerical, qualitative, and trans-temporal identity of objects, and that this is due to certain substance-ontological premises. I argue that in order to state the identity conditions of objects we must abandon these premises, together with the idea that objects enjoy ontological primacy. ;I follow a methodological program of formally (...) criticizing an ontological framework by demonstrating that each of the theories developed within this framework is incoherent, i.e., either inconsistent or subject to vicious regress. I proceed in three steps. First, I show that the substance-ontological paradigm cannot be characterized in terms of its basic entities, since there is no extensional, intensional, or functional definition of the notion of substance common to all extant substance ontologies; consequently, I propose to describe the substance-ontological paradigm in terms of its basic assumptions. ;Second, I analyze the contemporary discussion of the problem of individuality, the problem of universals, and the problem of persistence, and uncover 22 characteristic implicit assumptions of substance ontology. I show on the basis of representative examples that, due to their commitment to substance-ontological presuppositions, all extant types of solutions to the three mentioned problems are incoherent. In particular, I take issue with the bare particular view, the qualified particular view, and the bundle view of individuality; different varieties of platonist and nominalist theories of universals and of relational and functional theories of predication; and the endurance and perdurance approaches to persistence. ;Third, while historical process-ontological schemes have dropped some of the revealed substance-ontological presuppositions, I finally explore the result of rejecting all of them and sketch a scheme based on dynamic masses which promises to yield coherent explanations of the ontological features of those complex processes which we commonly consider to be objects. (shrink)

The ongoing bioethical debate about organ markets rests not only on theoretical premises, but also on assumptions regarding public views of and attitudes toward organ donation that need closer socioempirical examination. Summarizing results from our previous qualitative social research in this field, this paper illustrates the ethical significance of such public moralities in two respects: On one hand, it analyzes the implicit bias of the common rhetoric of “organ scarcity” which motivates much of the commercialization debate. On the (...) other hand, it explores the blind spots of the paradigm of “altruistic donation” which informs many arguments against commercialization. We conclude that the ethical discourse has to appreciate the social nature of organ donation as a reciprocal interaction between different parties with irreducibly different but equally relevant viewpoints. We criticize the neglect of such well-founded public considerations in certain philosophical-ethical approaches and stress the need for further systematic and comparative socioempirical studies about peoples’ actual perspectives in bioethics. (shrink)

The paper settles an open question concerning Negri-style labeled sequent calculi for modal logics and also, indirectly, other proof systems which make (more or less) explicit use of semantic parameters in the syntax and are thus subsumed by labeled calculi, like Brünnler’s deep sequent calculi, Poggiolesi’s tree-hypersequent calculi and Fitting’s prefixed tableau systems. Specifically, the main result we prove (through a semantic argument) is that labeled calculi for the modal logics K and D remain complete w.r.t. valid sequents whose relational (...) part encodes a tree-like structure, when the unique rule which contains an harmful implicit contraction—by which the condition that the premises be less complex than the conclusion is violated—is modified into a contraction-free one respecting the latter condition, thus making the proof-search space finite. (shrink)

Three competing ‘methods’ have been endorsed for inferring phylogenetic hypotheses: parsimony, likelihood, and Bayesianism. The latter two have been claimed superior because they take into account rates of sequence substitution. Can rates of substitution be justified on its own accord in inferences of explanatory hypotheses? Answering this question requires addressing four issues: (1) the aim of scientific inquiry, (2) the nature of why-questions, (3) explanatory hypotheses as answers to why-questions, and (4) acknowledging that neither parsimony, likelihood, nor Bayesianism are inferential (...) actions leading to explanatory hypotheses. The aim of scientific inquiry is to acquire causal understanding of effects. Observation statements of organismal characters lead to implicit or explicit why-questions. Those questions, conveyed in data matrices, assume the truth of observation statements, which is contrary to subsequently invoking substitution rates within inferences to phylogenetic hypotheses. Inferences of explanatory hypotheses are abductive in form, such that some version of an evolutionary theory(ies) is/are included or implied. If rates of sequence evolution are to be considered, it must be done prior to, rather than within abduction, which requires renaming those putatively-shared nucleotides subject to substitution rates. There are, however, no epistemic grounds for renaming characters to accommodate rates, calling into question the legitimacy of causally accounting for sequence data. (shrink)

Which properties are characteristic of the enthymeme in Aristotle's Rhetoric? There is no consensus on this point. The present discussion centres on three properties. 1. Is there always an implicit premise? (Answer: Above all, a pragmatic level and a logical level must be distinguished.) 2. Do the premises consist by definition of probabilities and signs? (Answer: No.). 3. Are all enthymemes reducible to a syllogistic form? (Answer: The literature pertaining to this question is dominated by a false dilemma: (...) an enthymeme does not have either a topical or a syllogistic structure). In general, Aristotle's approach to the enthymeme in the Rhetoric appears to shift from argumentation theory to logic. (shrink)

Logicians disagree on (1) criteria for the presence of an argument, (2) criteria for adding implicit premises and (3) criteria for linking premises. I attempt to resolve all three problems, and in the process to remove the main obstacles to teaching diagramming. The first problem is resolved by working with real discourse that students find on their own, rather than the artificial examples and problems found in logic texts; it is further reduced by examining the different uses (...) of argument and understanding the extent to which the basic rules of diagramming are the same for the various uses. The other disagreements persist because logicians neglect to clarify the principal type of eakness we remedy by adding implicit premises and linking premises: in real discourse we do so to block substantive counterexamples, an idea correlated with that of substantive deduction, discussed by Govier, Wright and others. (shrink)

Expressing a widely-held view, David Hitchcock claims that "an enthymematic argument ... assumes at least the truth of the argument's associated conditional ... whose antecedent is the conjunction of the argument's explicit premises and whose consequent is the argument's conclusion." But even definitionally, this view is problematic, since an argument's being "enthymematic" or incomplete with respect to its explicit premises means that the conclusion is not implied by these premises alone. The paper attempts to specify the ways (...) in which the view is incorrect, as well as seemingly correct (e.g., the case of a Modus Ponens wherein the major premise is implicit). -/- . (shrink)

Although in some contexts the notions of an ordinary argument’s presumption, assumption, and presupposition appear to merge into the one concept of an implicit premise, there are important differences between these three notions. It is argued that assumption and presupposition, but not presumption, are basic logical notions. A presupposition of an argument is best understood as pertaining to a propositional element (a premise or the conclusion) e of the argument, such that the presupposition is a necessary condition for the (...) truth of e or for a term in e to have a referent. In contrast, an assumption of an argument pertains to the argument as a whole in that it is integral to the reasoning or inferential structure of the argument. A logical assumption of an argument is essentially a proposition that must be true in order for the argument aside from that proposition to be fully cogent. Nothing that is both comparable and distinguishing can be said about presumptions of arguments. Rather, presumptions of arguments are distinctively conventional; they are introduced through conventional rules (e.g., those that concern how to treat promises). So not all assumptions and not all presuppositions of arguments are presumptions of those arguments, although all presumptions of arguments are either assumptions or presuppositions of those arguments. This account avoids making the (monological) notion of presumption vacuous and dissolving the distinction between assumption and presumption, which is a vulnerability of alternative views such as Hansen’s and Bermejo-Luque’s, as is shown. (shrink)

An argumentation profile is defined as a methodological instrument for analyzing argumentative discourse considering distinct and interrelated dimensions: the types of argument used, their quality, and the emotions triggered. Walton’s theoretical contributions are developed as a coherent analytical and multifaceted toolbox for capturing these aspects. Argumentation schemes are used to detect and quantify the types of argument. Fallacy analysis and the assessment of the implicit premises retrieved through the schemes allow evaluating arguments. Finally, the frequency of emotive words (...) signals the most common emotions aroused. This method is illustrated through a corpus of argumentative tweets of three politicians. (shrink)

In the Philebus, Plato elaborates an image of our soul as a book where a scribe and a painter are constantly at work. This book examines the implicit premises of this image and aims at overcoming the general polarity of ancient phantasia and modern imagination.

In his “Third Way” Aquinas appears to argue in a way that relies upon shifting quantifiers in a fallacious way. Some have tried to save this and other parts of the “Third Way” by introducing sophisticated logical and metaphysical machinery. Alternatively, Aquinas’ apparently fallacious quantifier shift can be seen to be part of a valid argument if we supply a simple premise which an Aristotelian natural philosopher would surely hold. In this short paper, I consider candidates for this premise, defend (...) a specific premise, and from that discussion draw a moral about quantifier predicate logic. I conclude that Aristotelian natural philosophy is more than an historical backdrop to Aquinas’ arguments. (shrink)

This paper advances an approach to relevance grounded on patterns of material inference called argumentation schemes, which can account for the reconstruction and the evaluation of relevance relations. In order to account for relevance in different types of dialogical contexts, pursuing also non-cognitive goals, and measuring the scalar strength of relevance, communicative acts are conceived as dialogue moves, whose coherence with the previous ones or the context is represented as the conclusion of steps of material inferences. Such inferences are described (...) using argumentation schemes and are evaluated by considering 1) their defeasibility, and 2) the acceptability of the implicit premises on which they are based. The assessment of both the relevance of an utterance and the strength thereof depends on the evaluation of three interrelated factors: 1) number of inferential steps required; 2) the types of argumentation schemes involved; and 3) the implicit premises required. (shrink)

Mayr’s proximate–ultimate distinction has received renewed interest in recent years. Here we discuss its role in arguments about the relevance of developmental to evolutionary biology. We show that two recent critiques of the proximate–ultimate distinction fail to explain why developmental processes in particular should be of interest to evolutionary biologists. We trace these failures to a common problem: both critiques take the proximate–ultimate distinction to neglect specific causal interactions in nature. We argue that this is implausible, and that the distinction (...) should instead be understood in the context of explanatory abstractions in complete causal models of evolutionary change. Once the debate is reframed in this way, the proximate–ultimate distinction’s role in arguments against the theoretical significance of evo-devo is seen to rely on a generally implicit premise: that the variation produced by development is abundant, small and undirected. We show that a “lean version” of the proximate–ultimate distinction can be maintained even when this isotropy assumption does not hold. Finally, we connect these considerations to biological practice. We show that the investigation of developmental constraints in evolutionary transitions has long relied on a methodology which foregrounds the explanatory role of developmental processes. It is, however, entirely compatible with the lean version of the proximate–ultimate distinction. (shrink)

A probability distribution is regular if it does not assign probability zero to any possible event. While some hold that probabilities should always be regular, three counter-arguments have been posed based on examples where, if regularity holds, then perfectly similar events must have different probabilities. Howson and Benci et al. have raised technical objections to these symmetry arguments, but we see here that their objections fail. Howson says that Williamson’s “isomorphic” events are not in fact isomorphic, but Howson is speaking (...) of set-theoretic representations of events in a probability model. While those sets are not isomorphic, Williamson’s physical events are, in the relevant sense. Benci et al. claim that all three arguments rest on a conflation of different models, but they do not. They are founded on the premise that similar events should have the same probability in the same model, or in one case, on the assumption that a single rotation-invariant distribution is possible. Having failed to refute the symmetry arguments on such technical grounds, one could deny their implicit premises, which is a heavy cost, or adopt varying degrees of instrumentalism or pluralism about regularity, but that would not serve the project of accurately modelling chances. (shrink)

A probability distribution is regular if no possible event is assigned probability zero. While some hold that probabilities should always be regular, three counter-arguments have been posed based on examples where, if regularity holds, then perfectly similar events must have different probabilities. Howson (2017) and Benci et al. (2016) have raised technical objections to these symmetry arguments, but we see here that their objections fail. Howson says that Williamson’s (2007) “isomorphic” events are not in fact isomorphic, but Howson is speaking (...) of set-theoretic representations of events in a probability model. While those sets are not isomorphic, Williamson’s physical events are, in the relevant sense. Benci et al. claim that all three arguments rest on a conflation of different models, but they do not. They are founded on the premise that similar events should have the same probability in the same model, or in one case, on the assumption that a single rotation-invariant distribution is possible. Having failed to refute the symmetry arguments on such technical grounds, one could deny their implicit premises, which is a heavy cost, or adopt varying degrees of instrumentalism or pluralism about regularity, but that would not serve the project of accurately modelling chances. (shrink)

An argumentation profile is defined as a methodological instrument for analyzing argumentative discourse considering distinct and interrelated dimensions: the types of argument used, their quality, and the emotions triggered. Walton’s theoretical contributions are developed as a coherent analytical and multifaceted toolbox for capturing these aspects. Argumentation schemes are used to detect and quantify the types of argument. Fallacy analysis and the assessment of the implicit premises retrieved through the schemes allow evaluating arguments. Finally, the frequency of emotive words (...) signals the most common emotions aroused. This method is illustrated through a corpus of argumentative tweets of three politicians. (shrink)

The determination thesis is the idea that art-ontological facts are determined by the folk ontological conception of artworks embedded in our artistic practices. From this thesis, descriptivism in the metaontology of art has been often characterized as the view that the task of art-ontology is to describe that folk conception. Amie Thomasson and Andrew Kania provide two paradigmatic accounts within this path. In this paper, I argue that this descriptivist approach is ungrounded because the determination thesis suffers from presupposition failure. (...) It presupposes that, whenever there is a practice of producing and appreciating artworks, there is also a folk ontological conception about those artworks. This presupposition, an implicit premise in Thomasson's and Kania's accounts, will be revealed as false, paying attention to the way artistic practices have evolved. I will conclude that descriptivism should abandon this approach and embrace metaontological realism if it aims to be a plausible view. (shrink)

The likelihood principle (LP) is a core issue in disagreements between Bayesian and frequentist statistical theories. Yet statements of the LP are often ambiguous, while arguments for why a Bayesian must accept it rely upon unexamined implicit premises. I distinguish two propositions associated with the LP, which I label LP1 and LP2. I maintain that there is a compelling Bayesian argument for LP1, based upon strict conditionalization, standard Bayesian decision theory, and a proposition I call the practical relevance (...) principle. In contrast, I argue that there is no similarly compelling argument for or against LP2. I suggest that these conclusions lead to a restrictedly pluralistic view of Bayesian confirmation measures. (shrink)

Abstract: Williamson argues that when one feels cold, one may not be in a position to know that one feels cold. He thinks this argument can be generalized to show that no mental states are such that when we are in them we are in a position to know that we are in them. I argue that his argument is a sorites argument in disguise because it relies on the implicit premise that warming up is gradual. Williamson claims that (...) his argument is not a sorites argument; I explain why he has not given us any reason to accept the claim. (shrink)

I discuss the general form of arguments that profess to prove that the view that things endure in tensed time through causally produced change (the dynamic view) must be false because it involves contradictions. I argue that these arguments implicitly presuppose what has been called the temporal parity thesis, i.e. that all moments of time are equally existent and real, and that this thesis must be understood as the denial of the dynamic view. When this implicit premise is made (...) explicit, the arguments turn out to be either circular, they presuppose what they profess to prove, or mere demonstrations of the fact that the dynamic view is incompatible with its own negation. Furthermore, I discuss the metaphysical consequences of accepting the temporal parity thesis, arguing that it deprives us of the means to provide natural explanations to empirical phenomena. (shrink)

The European Union is making increased efforts to find simpler and more effective ways to function adequately in the eyes of its citizens by using ‘soft law’ instruments such as recommendations. Although they have no legally binding force, recommendations have practical and legal effects occurring partly due to their normative content in which a course of action is prescribed and further supported by arguments intended to persuade the addressees of a political position. Although recommendations function as persuasive instruments due to (...) their argumentation, the characteristics of argumentation and how it is employed to convince the addressee to comply with certain measures have not been investigated at all. The main goal of the paper is to explain how arguments are used by the European Commission when recommending Member States to follow a new course of action. First, we will unravel the justificatory reasons employed by the Commission in order to make Member States comply with new measures and we will show how these reasons are combined into an argumentative pattern : 1–23, 2016; J Argum Context 6: 3–26, 2017). This pattern basically prescribes a course of action to Member States, which is further supported by arguments in which the necessity and advantages of following the proposed course of action are justified. Second, we will explain how and why the way in which the arguments are combined in this complex pattern could be potentially persuasive for the Member States despite the legally non-binding character of recommendations. We will show that the European Commission tries to persuade the Member States to take new measures by evading the burden of proof imposed by the legislative framework. At a more specific level of analysis, we will delve into the implicit premises in the argumentation, which enable us to identify cases of evasion of the burden of proof due to the Commission’s use of implicit starting points which might not be accepted by the Member States. (shrink)

This paper analyzes Kant's thesis in the Tugendlehre that there are certain ends that we are obligated to adopt. It contends that none of the three arguments which Kant advances in support of this thesis succeeds and that the attempted reconstruction by Nelson Potter likewise fails. It then maintains that the argument does work, if one brings in, as an implicit premise, transcendental freedom. Finally, it is argued that this late doctrine of obligatory ends marks a significant advance over (...) the treatment of broad duties in the Grundlegung and can serve as a basis for defending Kant's ethics against the familiar emptiness charge. Der Beitrag untersucht die These Kants in der Tugendlehre , daß es bestimmte Zwecke gibt, zu deren Verfolgung wir verpflichtet sind. Dabei stellt sich heraus, daß keines der drei Argumente, die Kant zur Stützung dieser These verwendet, durchgreift und daß der diesbezügliche Rekonstruktionsversuch von Nelson Potter ebenso fehlschlägt. Es wird weiterhin die Ansicht vertreten, daß die Argumentation dann überzeugt, wenn man die transzendentale Freiheit als Prämisse einbezieht. Schließlich wird gezeigt, daß diese späte Lehre Kants von den Zwecken, die zugleich Pflicht sind, einen erheblichen Fortschritt gegenüber der Behandlung der weiten Pflichten in der Grundlegung bedeutet und eine Grundlage dafür bietet, Kants Ethik gegen den üblichen Vorwurf des leeren Formalismus in Schutz zu nehmen. (shrink)

Stephen Mumford argues that positive aesthetic value is a by-product of both sport and art, and that the principal aim of the artist and the player or athlete could not be to produce positive aesthetic value. Three features of Mumford’s by-product argument are considered. It is argued that problems arise as a result of failure to appreciate Best’s distinction between the evaluative and conceptual uses of ‘aesthetic’, the nature of the descriptions Mumford gives of the intention of the artist in (...) making art and the necessary implicit premises in the argument. There is, therefore, reason to think that Mumford has not established that sport and art are in the same position in the ways in which their aims relate to aesthetic values, nor that the by-product argument can form part of a counter to Best’s position. (shrink)

Thomas Reid is often misread as defending common sense, if at all, only by relying on illicit premises about God or our natural faculties. On these theological or reliabilist misreadings, Reid makes common sense assertions where he cannot give arguments. This paper attempts to untangle Reid's defense of common sense by distinguishing four arguments: (a) the argument from madness, (b) the argument from natural faculties, (c) the argument from impotence, and (d) the argument from practical commitment. Of these, (a) (...) and (c) do rely on problematic premises that are no more secure than claims of common sense itself. Yet (b) and (d) do not. This conclusion can be established directly by considering the arguments informally, but one might still worry that there is an implicit premise in them. In order to address this concern, I reconstruct the arguments in the framework of subjective Bayesianism. The worry becomes this: Do the arguments rely on specific values for the prior probability of some premises? Reid's appeals to our prior cognitive and practical commitments do not. Rather than relying on specific probability assignments, they draw on things that are part of the Bayesian framework itself, such as the nature of observation and the connection between belief and action. Contra the theological or reliabilist readings, the defense of common sense does not require indefensible premises. (shrink)

In the tradition stemming from Aristotle through Aquinas, rational decision making is seen as a complex structure of distinct phases in which reasoning and will are interconnected. Intention, deliberation, and decision are regarded as the fundamental steps of the decision-making process, in which an end is chosen, the means are specified, and a decision to act is made. Based on this Aristotelian theoretical background, we show how the decision-making process can be modeled as a net of several patterns of reasoning, (...) involving the classification of an action or state of affairs, its evaluation, the deliberation about the means to carry it out, and the decision. It is shown how argumentation theory can contribute to our understanding of the mechanisms involved by formalizing the steps of reasoning using argumentation schemes, and setting out the value-based criteria underlying the evaluation of an action. Representing each phase of the decision-making process as a separate scheme allows one to identify implicit premises and bring the roots of ethical dilemma to light along with the means to resolve them. In particular, we will show the role of framing and classification in triggering value-based reasoning, and how argumentation theory can be used to represent and uproot the grounds of possible manipulations. (shrink)

In this paper, I inspect the grounds for the mature Spinozist argument for substance monism. The argument is succinctly stated at Ethics Part 1, Proposition 14. The argument appeals to two explicit premises: (1) that there must be a substance with all attributes; (2) that substances cannot share their attributes. In conjunction with a third implicit premise, that a substance cannot not have any attribute whatsoever, Spinoza infers that there can be no more than one substance. I begin (...) the inspection with the analysis of the first premise, which is provided in the form of the four proofs of God’s existence in Ethics Part 1, Proposition 11. While demonstrating how Spinoza adopts a progressive approach, where the fourth proof of God’s existence is more successful and persuasive than the third, which is more successful than the second, etc., I also unpack concepts central to Spinoza’s thinking here, including the concepts of reason (ratio) and power (potesta or potentia). I then analyze the second premise of the Spinozist argument for substance monism, as established by Ethics Part 1, Proposition 4 in conjunction with Ethics Part 1, Proposition 5. I take up and respond to the objection attributed to Leibniz that a substance p can have the attributes x and y and a substance q can have the attributes y and z, and thus that substances can share some attributes while remaining distinct. Throughout the study, my attention is focused on the argumentative procedures Spinoza adopts. This yields a close, internalist reading of the text where Spinoza effectively embraces substance monism. In conclusion to this study, I underscore to the originality of Spinoza’s argument for seventeenth century theories of substance. (shrink)

Two criticisms of Davidson's argument for monism are presented. The first is that there is no obvious way for the anomalism of the mental to do any work in his argument. Certain implicit premises, on the other hand, entail monism independently of the anomalism of the mental, but they are question-begging. The second criticism is that even if Davidson's argument is sound, the variety of monism that emerges is extremely weak at best. I show that by constructing ontologically (...) ``hybrid'' events that are consistent with the premises and assumptions of Davidson's argument, but entail ontological dualism. (shrink)

The usefulness of the statistic known as the p-value, as a means of quantify-ing the strength of evidence for the presence of an effect from empirical data has long been questioned in the statistical community. In recent years there has been a notable increase in the awareness of both fundamental and practical limitations of the statistic within the target research fields, and especially biomedicine. In this article I analyse the recently published article which, in summary, argues that with a better (...) understand-ing and thus more appropriate use of the statistic, many of the aforementioned limitations can be addressed. In particular, I demonstrate that the (often implicit) premises of this counterargument are questionable, in some cases arguably inconsistent, and that therefore the counterargument provides little if any justification for the continued use of the p-value. Additionally, my analysis should help researchers seeking to interpret their empirical data by illustrating the nuanced nature and the multiplicity of statistical, methodological, and epistemological issues which must be considered in this process. (shrink)

We argue that common knowledge, of the kind used in reasoning in law and computing is best analyzed using a dialogue model of argumentation (Walton & Krabbe 1995). In this model, implicit premises resting on common knowledge are analyzed as endoxa or widely accepted opinions and generalizations (Tardini 2005). We argue that, in this sense, common knowledge is not really knowledge of the kind represent by belief and/or knowledge of the epistemic kind studied in current epistemology. This paper (...) takes a different approach, defining it in relation to a common commitment store of two participants in a rule-governed dialogue in which two parties engage in rational argumentation (Jackson & Jacobs 1980; van Eemeren & Grootendorst 2004). A theme of the paper is how arguments containing common knowledge premises can be studied with the help of argumentation schemes for arguments from generally accepted opinion and expert opinion. It is argued that common knowledge is a species of provi- sional acceptance of a premise that is not in dispute at a given point in a dia- logue, but may later be defeated as the discussion proceeds . (shrink)

By formalizing the problem of mental causation, we first prove rigorously that the premises of the problem are jointly incompatible. Before the background of the formalizations, we clarify and assess the anti-physicalist argument by Scott Sturgeon and the supervenience argument by Jaegwon Kim. We demonstrate that, contrary to what has sometimes been contended, the negation of the non-identity premise of Kim's version of the supervenience argument is not tantamount to the claim that all mental events are identical to physical (...) events, that a premise implicitly invoked by Kim is actually required for the validity of the first stage of his supervenience argument, that precisely this premise makes an epiphenomenalism with respect to mental events an impossible position, and that there are good reasons to believe in the falsity of this implicit premise which in turn shows that Sturgeon's critique of the supervenience argument is substantive. (shrink)

Agent relativists about vagueness (henceforth ‘agent relativists’) hold that whether or not an object x falls in the extension of a vague predicate ‘P’ at a time t depends on the judgemental dispositions of a particular competent agent at t. My aim in this paper is to critically examine arguments that purport to support agent relativism by appealing to data from forced-march Sorites experiments. The most simple and direct versions of such forced-march Sorites arguments rest on the following (implicit) (...) premise: If competent speakers' judgements vary in a certain way, then the extensions of ‘P’ as used by these speakers must vary in the same way. This premise is in need of independent support, since otherwise opponents of agent relativism can simply reject it. In this paper, I focus on the idea that one cannot plausibly reject this premise, as that would commit one to implausible claims about linguistic competence. Against this, I argue that one can accommodate the data from forced-march Sorites experiments in a way that is compatible with a plausible picture of linguistic competence, without going agent relativist. Thus, there is reason to be sceptical of the idea that such data paired with considerations about linguistic competence can be invoked in order to lend any solid support to agent relativism. Forced-march Sorites arguments of this kind can, and should be, resisted. (shrink)

This paper investigates the relationship between characterization frames and argumentation in activists’ discourse about the public controversy surrounding fashion sustainability. While previous studies proposing an argumentative approach to frames have acknowledged that frames are related to underlying implicit premises, how frames select certain implicit premises still needs to be systematically explained. Therefore, drawing on a theoretical framework combining Pragma dialectics (van Eemeren 2010 ) with the Argumentum Model of Topics an empirical analysis of a social media (...) corpus has been performed in order to examine the connection between characterization frames and underlying implicit premises. This paper offers both a methodological and a theoretical contribution. From a methodological point of view, it offers linguistic-discursive tools for the analysis of characterization frames. From a theoretical perspective, it shows how characterization frames contribute to construct _endoxa_, i.e. underlying implicit premises, through argumentative patterns. (shrink)

Some of the methods for data collection in experimental psychology, as well as many of the inferences from observed behavior or image scanning, are based on the implicit premise that language use can be linked, via the meaning of words, to specific subjective states. Wittgenstein’s well known private language argument (PLA), however, calls into question the legitimacy of such inferences. According to a strong interpretation of PLA, all of the elements of a language must be publicly available. Thus the (...) meaning of words is not fixed by reference to our private experiences, and so data from subjective state claims indicates nothing about our subjective experiences. Application of PLA to psychological studies based on descriptions of the experience of orgasm offers support for the strong version of the conclusion of PLA. We show that PLA has deep implications for data collection methods and inferences in experimental psychology. In particular we critique two contemporary research projects in neuroscience: one studying the ability to remember emotionally loaded words and the other studying experience of attraction. Both of these projects attempt to link subjective experiences and thought processes to particular observable brain states. The research methods appeal to (implicit) inferences from linguistic usage to subjective states. Application of PLA will show that such inferences cannot be made because the meaning of a word is not determined by any subjective state of the speaker. (shrink)

Two major arguments have been advanced for the claim that there is a transmission failure in G. E. Moore’s famous proof of an external world. The first argument, due to Crispin Wright, is based on an epistemological doctrine now known as “conservatism.” Proponents of the second argument, like Nicholas Silins, invoke probabilistic considerations, most important among them Bayes’ theorem. The aim of this essay is to defend Moore’s proof against these two arguments. It is shown, first, that Wright’s argument founders (...) because one of its premises, viz, conservatism, invites skepticism and must therefore be rejected. Then the probabilistic argument is challenged, yet not because its formal part is dubious, but rather on the grounds that it incorporates as an implicit premise an unconvincing philosophical claim. Finally, the most promising objection to dogmatism – understood here as the negation of conservatism – is repudiated. (shrink)

Thesis: With the end of the cold war, ideological conflicts have faded. In their stead, we have witnessed the rise of cultural strife. On the borders of the great civilizations conflicts involving basic cultural values have arisen. These have given increased emphasis to the ethical imperative of cross cultural understanding. How do we go about understanding different cultures? What are the grounds and premises of such understanding? How does such understanding tie into the basic ethical theories that have marked (...) the West? The premise of this paper is that such understanding requires a new paradigm, one fundamentally different from that animating Western, scientific rationality. What is required is a rethinking of what constitutes our ethical selfhood. After proposing a concept of such selfhood, this essay shows that it is an implicit premise of Plato’s, Kant’s, Freud’s and Darwin’s thoughts about ethics. It makes some practical suggestions for increasing cross-cultural understanding and then concludes with a brief description of the normative, ethical ideal of such understanding. (shrink)

This thesis analyzes from a philosophical perspective different models for nonmonotonic inference, belief revision and the handling of inconsistencies. ;The first chapter serves as an introduction to the subject, giving examples and analyzing the main concepts. As a result of these discussions, this thesis tries to: produce a refined map of the main notions related to this subject, maintain that there can be a fault tolerant logic that stands in support of fault tolerant reasoning, and defend the use of deductive (...) databases as models for changes of belief. ;The second chapter explores monotonic proposals to deal with uncertain reasoning. These include logics based on a classical notion of consequence, interpretations of defeasible reasoning as containing implicit premises, and systems in which temporal change is an integral part of the representation of states of affairs, via temporal indices or more elaborate devices. ;The third chapter explores quantitative approaches to nonmonotonic reasoning like dispositional logic, and theories of probabilistic reasoning including Bayesian, certainty factors, and Dempster-Shafer. ;The fourth chapter explores qualitative approaches. Here we mention conditional, default, and nonmonotonic logics, and the circumscription and autoepistemic formalisms. ;The fifth chapter studies different proposals to deal with contradictions. It starts with a review of the types of belief inconsistencies, and then it presents mechanisms to prevent, control or correct them. I explore paraconsistent logics, specially relevance logics, to "bracket" the area of conflict and allow inferences about non-related topics to continue unaffected. Then I examine different methods to get rid of the inconsistencies, including the use of dependency-directed backtracking and of relevance logic. ;Finally, I present my conclusions, and mention some of the open problems. (shrink)

Joanna Mary Firth and Jonathan Quong argue that both an instrumental account of liability to defensive harm, according to which an aggressor can only be liable to defensive harms that are necessary to avert the threat he poses, and a purely noninstrumental account which completely jettisons the necessity condition, lead to very counterintuitive implications. To remedy this situation, they offer a “pluralist” account and base it on a distinction between “agency rights” and a “humanitarian right.” I argue, first, that this (...) distinction is spurious; second, that the conclusions they draw from this distinction do not cohere with its premises; third, that even if one granted the distinction, Firth’s and Quong’s implicit premise that you can forfeit your agency rights but not your “humanitarian right” is unwarranted; fourth, that their attempt to mitigate the counterintuitive implications of their own account in the Rape case relies on mistaken ad-hoc assumptions; fifth, that even if they were successful in somewhat mitigating said counterintuitive implications, they would still not be able to entirely avoid them; and sixth, that even in the unlikely case that none of these previous five critical points are correct, Firth and Quong still fail to establish that aggressors can be liable to unnecessary defensive harm since they fail to establish that unnecessary harm can ever be defensive in the first place. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reason, Passion, and Metaphysics in Bonaventure:Against Hylomorphic EnthusiasmMatthew J. DugandzicIntroductionContemporary commentators on Aquinas's understanding of the passions all agree that reason is supposed to be the ruler of the passions, but they disagree on the character of this rule. Some would ascribe a high degree of freedom to the passions, such that, even though reason is overall the ruler of the passions, sometimes the passions are right to resist (...) this rule.1 Others argue that the passions ought to obey reason slavishly, such that, if any passion is to be virtuous, it must result from "reason's immediate control,... [that is,] reason now commanding this or that passion."2 Many other thinkers would fall somewhere in between these two positions at various points, such that giving a full account of the range of these positions would be quite complicated, but these scholars could also be placed neatly into two categories according to how they would answer the following question: Are virtuous passions only those that arise in response to reason's immediate command, or can other passions be included, such as those that, for example, without [End Page 123] being explicitly commanded to do so by reason, prompt reason to do this or that, or even inform reason about some aspect of an object?3 Until recently, most scholars of Thomas Aquinas would have held the latter position, that the passions sometimes have some positive roles to play in the virtuous life even when they arise in the absence of an immediate command from reason.4 In recent years, however, the number of scholars who maintain the former position, holding that any passion that does not arise in response to reason's immediate command is not virtuous, has been growing.5 [End Page 124]My aim in this article is further to bolster the case of those who hold that, for Aquinas, the only passions that are virtuous are those that arise from reason's immediate command. I will do this by criticizing an argument that is commonly used by those who oppose this position, and which I refer to as "hylomorphic enthusiasm." Generally speaking, the logic of hylomorphic enthusiasm goes like this: Aquinas's understanding of the relationship between passion and reason is rooted in his hylomorphic view of the unity between body and soul, which unity implies that, for him, reason and passion have something of a collegial relationship, whereby reason rules the passions not despotically, but as a ruler who, though in charge, is nevertheless interested in hearing what his subjects have to say. Paul Gondreau, for example, says that, in Aquinas's view, reason rules over the passions as in a "constitutional monarchy," in which "citizens submit to the supreme authority of the monarch, yet without relinquishing all their political rights and privileges."6 For Gondreau, Aquinas's characterization of the relationship between reason and passion was unique for his time, and was due to his similarly unique "hylemorphic [sic] metaphysics of human nature."7 Bonaventure, on the other hand, did not share this hylomorphic view of the relationship between body and soul, but was rather a substance dualist, and so, consequently, he thought that reason cannot rule the passions politically, but can only "'tame' the passions by a kind of exterior imposition, or forced 'submission to reason' [obtemperat ratoini)]."8In sum, the position of the hylomorphic enthusiasts is this: Aquinas's hylomorphic view of the unity of body and soul implies a collegial view of reason's rulership over passion, while Bonaventure's more dualistic view of the relationship between body and soul implies that reason could rule the passions only despotically, rather than politically. There are a number of premises, both implicit and explicit, in this argument. For the sake of focusing this paper, I will choose to focus on two. First, I will focus on the explicit claim that Bonaventure held a dualistic view of the relationship [End Page 125] between body and soul; I maintain that Bonaventure's understanding of the relationship between body and soul is no more dualistic than Aquinas's. Second, an implicit premise of hylomorphic enthusiasm is that having a hylomorphic or... (shrink)

Milton Friedman’s famous comment on Corporate Social Responsibility is that “there is one and only one social responsibility of business—to use its resources and engage in activities to increase its profits so long as it stays within the rules of the game.” I reply to Friedman, Michael Jensen, and others, in argument that accepts their implicit premise—that business can be a virtuous mechanism of free society—but that denies their delimitation of responsibility. The reply hinges upon precisely the virtue of (...) “freedom” these authors clearly value. In the extreme case where maximizing profits would place government under threat, such activity will not coincide with maximizing social value and would undermine the freedoms these authors claim to value. Responsibilities will also apply in less extreme cases, if we develop Amartya Sen’s argument showing that, “we have to see individual freedom as a social commitment.”. (shrink)