In The Realm of Reason (2004), Christopher Peacocke develops a “generalized rationalism” concerning, among other things, what it is for someone to be “entitled”, or justified, in forming a given belief. In the course of his discussion, Peacocke offers two arguments to the best explanation that aim to undermine scepticism and establish a justification for our belief in the reliability of sense perception, respectively. If sound, these ambitious arguments would answer some of the oldest and most vexing (...) epistemological problems. In this paper I will evaluate these arguments, concluding that they are inconclusive at best. Despite offering some interestingly original arguments, Peacocke gives us no reason to think that scepticism is false, and that perception is generally reliable. (shrink)

Kant was never satisfied with the version of his “Refu- tation” published in 1787 (KrV, B 275-279). His dissatisfaction is already evident in the footnote added to the preface of the second edition of the Critique in 1787. As a matter of fact, Kant continued to rework his argument for at least six years after 1787. The main exegetical problem is to figure out who is the target of the “Refutation”: a non-skeptic idealist, a global skeptic of Cartesian provenance or (...) both. In this last case, the related problem is to know whether either of them is the Cartesian skeptic of the first Meditation, the idealist skeptic of the second Meditation and first part of the third Meditation, or some other non-skeptic idealist. I present and defend a new reconstruction of Kant’s “Refu- tation” as a successful argument against Mendelssohnian idealism of Cartesian provenance. This defense is based on a simple logical sketch of the proof provided by Dicker but essentially modified in light of Dyck’s insight about Kant’s opponent. How shall I support my reading? First, by appealing to overwhelming textual evidence according to which the proof is of the existence of mind-independent things, showing that Kant’s main opponent is Mendelssohn’s idealism of Cartesian provenance. Finally, I support my reading by showing that Kant’s “Refutation” is doomed to fail against all forms of global skepticism but is quite successful against Mendelssohn’s idealism. (shrink)

In this paper I argue that a priori arguments fail to present any real problem for physicalism. They beg the question against physicalism in the sense that the argument will only seem compelling if one is already assuming that qualitative properties are nonphysical. To show this I will present the reverse-zombie and reverse-knowledge arguments. The only evidence against physicalism is a priori arguments, but there are also a priori arguments against (...) dualism of exactly the same variety. Each of these parity arguments has premises that are just as intuitively plausible, and it cannot be the case that both the traditional scenarios and the reverse-scenarios are all ideally conceivable. Given this one set must be merely prima facie conceivable and only empirical methods will tell us which is which. So, by the time a priori methodology will be of any use it will be too late. (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 this paper we don’t intend to show, against the sceptic, that most of our everyday beliefs about the external world are cases of knowledge. What we do try to show is that it is more rational to hold that most of such beliefs are actually cases of knowledge than to deny them this status, as the external world sceptic does. In some sense, our point of view is the opposite of Hume’s, who held that reason clearly favours (...) class='Hi'>scepticism about the independent existence of an external world rather than common sense belief in such an independent existence. In arguing for the superior rationality of this common sense, Moorean view, we also take a fallibilist conception of knowledge to be rationally preferable to an infallibilist view of it. (shrink)

'If a person can think of an F, then that person has come into causal contact with an F in the right way' is a premise in an obvious reconstruction of Putnam's argument that we are not brains in vats. 'If a person can think of an F, then that person has come into causal contact with an F or with something at least as good as an F' is the only controversial premise in Descartes' argument for the existence of (...) God. Putnam's principle entails Descartes', which suggests that we should enquire after better versions of Putnam's proof. I present three variations and conclude that Putnam's semantic theory does not have anti-sceptical consequences. In contrast, given Descartes' cognitive situation, he was perfectly justified in accepting the soundness of his argument for the existence of God. (shrink)

1. It is a commonplace that contemporary empiricism, or antimetaphysical philosophy, at least in this country, is a re-statement of the essentials of Hume's position with the aid of the more complete analysis of a priori reasoning provided by logicians within the last fifty years; what logical empiricism has most substantially added to Hume's sceptical method is the means of stating and applying his distinction between purely analytic sentences and sentences conveying information about matters of fact more precisely than (...) he was able to state or apply it. It was Hume's governing purpose in every part of his writing to defend what is now generally called the language of common-sense, which is essentially what he called natural belief, against every kind of philosophical theory, whether rationalist or professedly sceptical. By “philosophical theory” is meant in this context any attempt by the use of logical or a priori arguments either to justify or to amend our common-sense beliefs or assertions; Hume tries to show that all such attempts are mistaken in logic and ineffective in fact. The work of the genuine sceptic, who is the true philosopher, is repeatedly to draw attention to the limits of human reason; to draw attention to the limits of human reason is to point to the logical impossibility of answering philosophical demands for some general, and therefore non-empirical, justification of our natural beliefs; such demands involve the substituting of some single, imposed criterion of justification in the place of the various and shifting criteria which we in fact habitually use. (shrink)

This article examines the role of scepticism in the Islamic philosophical tradition. It begins with a treatment of the origins and purpose of these discussions in classical kalām (c. 800–1100 CE). Then it moves on to the more mature discussions treating five forms of scepticism in the post‐classical period (c.1200–1800 CE), with the aim of demonstrating how they construed scepticism, the arguments for and against it, and what purposes scepticism played in their system. Three (...) of these types of scepticism are unrestricted, meaning that their denial of knowledge is universal. The other two types are restricted to a denial of inferential knowledge, either entirely, or in certain subjects such as metaphysics and natural philosophy. The discussion will focus on two of the most widely studied works of kalām: Saʿd al‐Din al‐Taftāzānī's Sharḥ al‐ʿAqāʾid al‐Nasafiyya and Jalāl al‐Dīn al‐Dawānī's Sharḥ al‐ʿAqāʾid al‐ʿAḍudiyya, including some of their super‐commentaries. (shrink)

SummaryA familiar sort of argument for skepticism about the external world appeals to the evidential similarity between what is presumed to be the normal case and the case where one is a brain in a vat . An argument from Putnam has been taken by many to provide an a priori refutation of this sort of skeptical argument. The question I propose to address in this paper is whether Putnam's argument affords us an a priori refutation of skeptical (...) arguments that appeal to the claim that one does not know that one is not a BIV. I will develop a negative answer to this question along two related fronts. Along the first front I defend against new criticisms the common position that the externalism on which Putnam's argument is based entails skepticism about the meanings of sentences in our language and the contents of our thoughts. I do not take this to be a refutation of externalism or externalist arguments; rather, I see this as a motivation to locate the difficulty with arguments for externalism. But if externalism is abandoned, of course, the anti‐skeptical argument it has widely been taken to support must be abandoned along with it. I will argue, however, that this is not a significant loss, because along a second front I will argue that externalism cannot be given a priori justification; it is therefore ill‐suited to ground an a priori refutation of BIV skepticism anyway. (shrink)

This paper will make the case that we can find in Kant’s Second Analogy a substantive response to Hume’s argument on induction. This response is substantive insofar as it does not merely consist in independently arguing for the opposite conclusion, but rather, it identifies and exploits a gap in this argument. More specifically, Hume misses the possibility of justifying the uniformity of nature as a synthetic a priori proposition, which Kant looks to establish in the Second Analogy. Note that (...) the focus on the paper is on Kant’s identification of the form that a solution to Hume’s inductive scepticism must take. In making this point, my paper will look to establish two lemmas: Kant identifies synthetic a priori judgments as a means of justifying metaphysical knowledge in a way that circumvents Hume’s dichotomy between matters of fact and relations of ideas; the Second Analogy looks to establish the uniformity of nature of as a synthetic a priori proposition. However, my paper generally abstains from the question of the tenability of Kant’s argument in the Second Analogy. Doing justice to this latter discussion would require more space than I am able to offer here. My paper therefore has a conditional bearing on the philosophical issue of inductive scepticism. If one believes Kant’s Second Analogy to be philosophically cogent, then Kant offers a successful justification of induction against Hume’s scepticism. If not, then at least one can still admire Kant’s identification of the gap in Hume’s argument, which, to a degree, can be exploited independently of Kant’s system. (shrink)

Argues against several influential a priori arguments for individualism in the philosophy of mind that were influential in the 1980s.

The main problem of this study is David Hume’s (1711-76) view on Metaphysical Realism (there are mind-independent, external, and continuous entities). This specific problem is part of two more general questions in Hume scholarship: his attitude to scepticism and the relation between naturalism and skepticism in his thinking. A novel interpretation of these problems is defended in this work. The chief thesis is that Hume is both a sceptic and a Metaphysical Realist. His philosophical attitude is to suspend his (...) judgment on Metaphysical Realism, whereas as a common man he firmly believes in the existence of mind-independent, external, and continuous entities. Therefore Hume does not have any one position; accordingly, a form of “no one Hume” interpretation (Richard Popkin, Robert J. Fogelin, Donald L.M. Baxter) is argued for in the book. The key point in this distinction is the temporal difference between Hume’s philosophical and everyday views. It is introduced in order to avoid attributing a conscious contradiction to him (a problem which has not attracted enough attention in the literature). The method of the work is modelled on Peter Millican’s work on Hume and induction. The approach to the main problem is to study the two “profound” arguments against the senses that Hume presents in the Section 12 of An Enquiry concerning Human Understanding (1748). These arguments are first reconstructed in detail resulting in Millican-type diagrams of them and then Hume’s endorsement of them is established on the basis of the diagrams. The first profound argument concludes that Metaphysical Realism and thus any Realistic theory of perception is unjustified as well as the existence of God and the soul. The second argument goes further having first conceptual conclusion: the very notions of Real entitity, material substance, and bodies are completely out of the reach of the faculty of understanding. Therefore they ought to be rejected according to Hume. This is a consequence of the consistent use of the Humean faculty of reason: idea-analysis and inductive inference. The second profound argument thus concludes that believing in Metaphysical Realism is inconsistent with the rational attitude that is to refrain from this belief. Hence, if we attributed both of them to Hume, we would end up with a great philosopher who embraces a manifest contradiction. The study is finished by arguing that this sceptical and Metaphysically Realistic interpretation concurs well with (1) Hume’s professed Academical philosophy and (2) project of the science of human nature. (1) According to Hume, Academical philosophy is in the first place diffidence, modesty, and uncertainty including suspension on certain issues. Secondly, it is restriction of the range of topics for which experience can provide a standard of truth. This kind of empiricist epistemological realism is coherent with the sceptical attitude on Metaphysical Realism because the latter does not rule out inter-subjective consensus on what we experience. (2) Suspension of judgment on Metaphysical Realism coheres with the mind-dependency of the objects of Hume’s science of human nature: the understanding, passions, morals, aesthetics, politics, and the human culture in all of its manifestations. Although the study takes the first Enquiry to be Hume’s authorised word on the understanding, his juvenile work A Treatise of Human Nature (1739-40) is argued to support this “no one Hume” interpretation. Hume’s other works are also discussed when needed. (shrink)

I reconstruct and critique two arguments Laurence BonJour has recently offered against skepticism about the a priori. While the arguments may provide anti-skeptical, internalist foundationalists with reason to accept the a priori, I show that neither argument provides sufficient reason for believing the more general conclusion that there is no rational alternative to accepting the a priori.

This note aims to clarify which arguments do, and which arguments do not, tell against Conceptualism, the thesis that the representational content of experience is exclusively conceptual. Contrary to Sean Kelly’s position, conceptualism has no difficulty accommodating the phenomena of color constancy and of situation-dependence. Acknowledgment of nonconceptual content is also consistent with holding that experiences have nonrepresentational subjective features. The crucial arguments against conceptualism stem from animal perception, and from a distinction, elaborated in the (...) final section of the paper, between content which is objective and content which is also conceived of by its subject as objective. (shrink)

Albert Casullo (2000, 2003) and Shane Oakley (2011) argue that dilemma arguments against epistemic naturalism, such as those offered by Laurence BonJour (1998) and Harvey Siegel (1984), are such that, whatever strength they have against naturalism applies equally to moderate rationalist accounts of a priori justification. They conclude that dilemma arguments are, therefore, insufficient for establishing an advantage for moderate rationalism over naturalized epistemology. I argue that both Casullo's and Oakley's criticisms depend on an illicit (...) assumption, namely, that dilemma arguments presuppose a meta-justificatory demand that naturalists provide non-circular support for their basic sources of evidence. I argue that this assumption is not necessary for the force of dilemma arguments, and I construct a version that avoids this misreading. I conclude that, although there remain strategies for responding to dilemma arguments, they constitute a challenge naturalists must take seriously. (shrink)

This note aims to clarify which arguments do, and which arguments do not, tell against Conceptualism, the thesis that the representational content of experience is exclusively conceptual. Contrary to Sean Kelly's position, conceptualism has no difficulty accommodating the phenomena of color constancy and of situation‐dependence. Acknowledgment of nonconceptual content is also consistent with holding that experiences have nonrepresentational subjective features. the crucial arguments against conceptualism stem from animal perception, and from a distinction, elaborated in the (...) final section of the paper, between content which is objective and content which is also conceived of by its subject as objective. (shrink)

According to the view that Peacocke elaborates in A Study of Concepts (1992), a concept can be individuated by providing the conditions a thinker must satisfy in order to possess that concept. Hence possessions conditions for concepts should be specifiable in a way that respects a non-circularity constraint. In a more recent paper “Implicit Conceptions, Understanding and Rationality” (1998a) Peacocke argues against his former view, in the light of the phenomenon of rationally accepting principles which do not follow from (...) what the thinker antecedently accepts. In this paper I defend the view of the book from his more recent criticisms, claiming that the noncircularity constraint should be respected, and that Peacocke's more recent insights could be accommodated in the framework of his former theory of concepts. (shrink)

I give a brief overview of Albert Casullo’s Essays on A Priori Knowledge and Justification (2012), followed by a summary of his diagnostic framework for evaluating accounts of a priori knowledge and a priori justification. I then discuss Casullo’s strategy for countering deficiency arguments against empiricism. A deficiency argument against empiricism can be countered by mounting a parallel argument against moderate rationalism that shows moderate rationalism to be defective in a similar way. I (...) argue that a particular deficiency argument put forth by George Bealer in “The Incoherence of Empiricism” (1992) can withstand a parallel challenge mounted by Casullo (2012, Ch.6). -/- I then consider Casullo’s preferred analysis of the concept of a priori justification, which identifies a belief’s being justified by some nonexperiential source as the feature by virtue of which it is justified a priori. On the analysis, an apriori-justfied belief that is justified to a degree that is sufficient for knowledge is not taken to be empirically indefeasible. I argue that Casullo could avail himself of an empirical indefeasibility requirement that is consistent with his minimal and fallibilist conception of a priori knowledge. Doing so would capture a feature of the concept of a priori knowledge that is of particular interest and significance. (shrink)

To analyze some sсeptical arguments was build the epistemological model about only one perceiving subject “Enarch”: he is one (ἐνᾴϛ) and has beginning (ἀρχῄ) in itself. This model was applyed for critical analysis of Husserl’s and Putnam’s attempts to overcome scepticism (i) by using “the intersubjective program” in a first case and (ii) argument “brains in a vat” in a second one. To justify the equivalence of the “intersubjectiveness” and “objectiveness” Husserl suggested the existence of transcendental Community. The (...) main goal of the paper is to show that intersubjective epistemology faces the difficulty: the equivalence of the“intersubjectiveness” and “objectiveness” is not feasible. Developing Putnam’s model “brains in a vat” about boundaries of scepticism has been formulated the argument about “back of the head”. It showed that skepticism is much more strictly doctrine than it was suggested by Putnam. (shrink)

Given anti-individualism, a subject might have a priori (non-empirical)knowledge that she herself is thinking that p, have complete and exhaustive explicational knowledge of all of the concepts composing the content that p, and yet still need empirical information (e.g. regarding her embedding conditions and history) prior to being in a position to apply her exhaustive conceptual knowledge in a knowledgeable way to the thought that p. This result should be welcomed by anti-individualists: it squares with everything that compatibilist-minded anti-individualists (...) have said regarding e.g. the compatibility of anti-individualism and basic self-knowledge; and more importantly it contains the crux of a response to McKinsey-style arguments against anti-individualism. (shrink)

Evolutionary debunking arguments against religious beliefs move from the claim that religious beliefs are caused by off-track processes to the conclusion that said religious beliefs are unjustified and/or false. Prima facie, EDAs commit the genetic fallacy, unduly conflating the context of discovery and the context of justification. In this paper, we first consider whether EDAs necessarily commit the genetic fallacy, and if not, whether modified EDAs provide successful arguments against theism. Then, we critically evaluate more recent (...) attempts to argue that a more promiscuous evolutionary scepticism renders religious belief unjustified because, unlike commonsense and scientific beliefs, religious beliefs have no way out of such scepticism. (shrink)

This paper argues that a naturalized epistemology of the kind presented by W.V. Quine preserves everything worthwhile in traditional epistemology. Arguments against Quinean naturalism by such writers as Laurence BonJour, Jaegwon Kim, Richard Rorty, Barry Stroud, and Donald Davidson are criticized. Contrary to what is sometimes assumed, Quinean naturalism does not reject a priori justification. The important point is that epistemology is contained in science. There is no ‘first philosophy’, and, in particular, epistemology is not a normative (...) discipline. Nevertheless, there is a sense in which Quinean naturalism provides an answer to Cartesian scepticism. (shrink)

In this paper I discuss, on behalf of the materialist, a consideration against the modal or conceivability argument against materialism which was first voiced in the third lecture of Naming and Necessity. This consideration is based on intertheoretic identities, statements in which both terms flanking the identity sign are theoretical. I argue that the defender of the conceivability argument has trouble to account for the appearance of contingency in those types of necessary identities. In fact, intertheoretic identities pose (...) a formidable dilemma for the defender of the modal argument and actually force the antimaterialist to say more about the semantics of theoretical terms than is implicit in standard discussions of the argument. I myself consider several options in this regard, the upshot being, however, that none of the alternative semantics for theoretical terms available to the antimaterialist is good enough to achieve the twofold aim which her modal argument requires, namely, to account for the a posteriori necessity of identities of this sort and, at the same time, to preserve her antimaterialist argument. Finally, in the last part of the paper, I argue that my defense of materialism can withstand some worries coming from David Chalmers’ recent views on a priori scrutability. (shrink)

This paper is divided into three sections. In the first section I briefly outline the background of the problem, i.e. Kripke’s modal argument (Kripke 1980). In the second section I present Chalmers’ account of two- dimensional semantics and two-dimensional argument against physicalism. In the third section I criticize Chalmers’ approach based on two crucial points, one is about necessity of identities and the other is about microphysi- cal descriptions and a priori derivation.

It is just over fifty years since the publication of Quine’s ‘Two Dogmas of Empiricism’. That paper expresses a broad vision of the system of relations between meaning, experience, and the rational formation of belief. The deepest challenges the paper poses come not from the detailed argument of its first four sections – formidable though that is – but from the visionary material in its last two sections.1 It is this visionary material that is likely to force the reader to (...) revise, to deepen, or to rethink her position on fundamental issues about the relations between meaning, experience, rationality, and, above all, the a priori. Does what is right in Quine’s argument exclude any rationalist view of these relations? How should a rationalist view be formulated? Those are the questions I will be addressing. I start with the critical part of this task, a consideration of the strengths and weaknesses of Quine’s vision. Drawing on the constraints emerging from that critical discussion, I will then turn to the positive task of articulating and defending a rival conception. The rival conception can be described as a Generalized Rationalism. (shrink)

I give a brief overview of Albert Casullo’s Essays on A Priori Knowledge and Justification, followed by a summary of his diagnostic framework for evaluating accounts of a priori knowledge and a priori justification. I then discuss Casullo’s strategy for countering deficiency arguments against empiricism. A deficiency argument against empiricism can be countered by mounting a parallel argument against moderate rationalism that shows moderate rationalism to be defective in a similar way. I argue (...) that a particular deficiency argument put forth by George Bealer in “The Incoherence of Empiricism” can withstand a parallel challenge mounted by Casullo.I then consider Casullo’s preferred analysis of the concept of a priori justification, which identifies a belief’s being justified by some nonexperiential source as the feature by virtue of which it is justified a priori. On the analysis, an apriori-justfied belief that is justified to a degree that is sufficient for knowledge is not taken to be empirically indefeasible. I argue that Casullo could avail himself of an empirical indefeasibility requirement that is consistent with his minimal and fallibilist conception of a priori knowledge. Doing so would capture a feature of the concept of a priori knowledge that is of particular interest and significance. (shrink)

Once, G. E. Moore scorned the “common point of view which takes the world of experience as ultimately real.” The argument Moore followed to this sceptical conclusion in his fledgling 1897 fellowship dissertation was a legacy from Kant's Antinomies. By 1899 Moore had renounced idealist conclusions; he set out both to disengage from Kantian arguments and to reconcile with “the world of experience.” Moore's work for a stable realist basis for knowledge to fulfil both aims occupied his most famous (...) argument, in his 1939 lecture “Proof of an External World.” Moore himself is sometimes supposed to have thought the argument of this masterwork unsatisfactory where it treats a traditional sceptical puzzle posed by dreaming. Critics, including Wittgenstein, have portrayed Moore's best reply to philosophical scepticism as dogmatic mere assertion, unresponsive or as ineffectual as sheer handwaving. However, these critics rate Moore's success against scepticism based on interpretations of “Proof of an External World” that neglect its part in Moore's campaign against Kant. Consequently, some potentially pivotal questions — which in this study I merely broach — remain wide open; for example, why in presenting his famous 1939 proof did Moore state that its purpose was to refute what “Kant declares to be his opinion, that there is only one possible proof of the existence of things outside of us”? And why did Moore explicitly reject the formula for posing philosophical scepticism in which Kant famously proclaimed this problem “a scandal to philosophy”? (shrink)

Judgement, perception, and other mental states and events have a minimal objectivity in this sense: making the judgement or being in the mental state does not in general thereby make the judgement correct or make the perception veridical. I offer an explanation of this minimal objectivity by developing a form of constitutive transcendental argument. The argument appeals to the proper individuation of the content of judgements and perceptions. In the case of the conceptual content of judgements, concepts are individuated by (...) their fundamental reference rules. Properly developed, this resource can be used against various forms of idealism, and to defend a conception of transcendental arguments that presupposes neither verificationism nor transcendental idealism. The article contrasts its approach with other recent transcendental treatments. It also addresses the relation between its argument and Principles of Significance. I close with a discussion of the right way of handling the extreme generality necessarily involved in transcendental reasoning. (shrink)

IN discussions of the identity theory of mind, there is constant recourse to two related types of argument, from ordinary language usage, to the effect that the theory in question is either false or meaningless. We can refer to the two arguments under discussion as the category argument and the meaninglessness argument. If either one of these arguments were well founded we could decide a priori without waiting for further research in the relevant sciences, whether or not (...) the mind could be identified with processes of the central nervous system. The answer would be in the negative. It is proposed to examine these two arguments here, and to question the persuasive simplicity with which they have been frequently put forward. If they do not bear up well under closer scrutiny we may not, of course, conclude to the truth of the identity theory; we will conclude only that it has not been a priori eliminated, by these arguments, as a contender for the solution of the mind-body problem. (shrink)

IN discussions of the identity theory of mind, there is constant recourse to two related types of argument, from ordinary language usage, to the effect that the theory in question is either false or meaningless. We can refer to the two arguments under discussion as the category argument and the meaninglessness argument. If either one of these arguments were well founded we could decide a priori without waiting for further research in the relevant sciences, whether or not (...) the mind could be identified with processes of the central nervous system. The answer would be in the negative. It is proposed to examine these two arguments here, and to question the persuasive simplicity with which they have been frequently put forward. If they do not bear up well under closer scrutiny we may not, of course, conclude to the truth of the identity theory; we will conclude only that it has not been a priori eliminated, by these arguments, as a contender for the solution of the mind-body problem. (shrink)

Kripke's epistemic argument against descriptivism is reconstructed as follows. Premise 1: if descriptivism is correct, then “N is the F” should be knowable a priori; Premise 2: in fact, “N is the F” is not knowable a priori; Conclusion: descriptivism is wrong. This article accepts P2 of the argument as true, but rejects P1 by arguing for the evolution of language and the growth of meaning; so it concludes that the argument fails. It also criticizes Kripke's conception (...) of “a priori,” and interprets why “N is the F” is not knowable a priori. Sometimes this article uses materials from Chinese ancient philosophers, for example, Xunzi and later Moists, to support its arguments. (shrink)

The penultimate chapter of The Realm of Reason discusses the relation between the author's moral rationalism and a thorough moral realism and the question of whether a moral rationalist can hold that moral properties are sometimes involved in causal explanations. In reply, The author introduces what he calls the Eirenic Combination, which holds that causal explanation of a priori moral beliefs by moral facts is excluded by the a priori status of those beliefs; but this is compatible with (...) the moral properties mentioned in the a priori principles playing a significant part in empirical explanations, which they sometimes do. He then defends his moral rationalism against the charge that it is incompatible with the extensive role moral emotions play in our ordinary first‐level moral thought. (shrink)

In the central chapter of Can God Be Free?, William Rowe offers what amounts to an a priori argument for atheism. In what follows, I first clarify this argument, and I then defend it against recent criticisms due to William Hasker. Next, however, I outline four ways in which theists might plausibly reply to Rowe’s argument.

The paper analyses the argument proposed by Milne against truthmaker maximalism and shows that the objections raised to this argument by de Sa and Zardini, and Rodriguez-Pereyra are misguided because the first one misuses the vagueness of some terms; and the second one is based on a fallacy of petitio principii.

From the second half of the last century, there has been a widespread view in the Anglophone world that Kant’s transcendental deduction (aka TD) aims to vindicate our common-sense view of the world as composed of public and objective particulars against some unqualified forms of skepticism. This widespread assumption has raised serious doubt not only about the success of TD but also about the very nature of its argument in both editions of the Critique. Yet, if there is a (...) connection between TD and global skepticism, the intriguing question is: Who is this skeptic? According to Strawson, “the skeptic” is a hypothesis of a purely sense-datum experience. In contrast, the fact that TD turns on the key notion of self-consciousness has induced several other scholars to assume that the skeptic is no none but a Cartesian external-world skeptic. None of those readings find textual support or are compatible with the very structure of the first Critique. The question is: Does this mean that TD aims only to undermine empiricism, as Guyer suggests? I do not believe so. I am pretty convinced that TD addresses a peculiar form of global skepticism, namely “Hume’s challenge to reason.” Assuming that we cognize (erkennen) and experience (erfahren) appearances as objects as a requirement of Newtonian physics, TD aims to provide a justification of the principle that nature is uniform that is superior to Hume’s justification. (shrink)

The epistemological argument against descriptivism about proper names is extremely simple. Fora proper name ‘N’ and definite description ‘F’, the proposition expressed by “If N exists, then N is F is not normally known a priori. But descriptivism about proper names entails otherwise. So descriptivism is false. The argument is widely regarded as sound. This paper aims to establish that the epistemological argument is highly unstable. The problem with the argument is that there seems to be no convincing (...) rationale for the first premise that is independent of a view about the nature of the proposition expressed by the sentence “If N exists, then N is F”. (shrink)

This paper is a new defense of type-B materialism against Jackson’s knowledge argument (1982) inspired by the Kantian main opposition between concepts and sensible intuitions. Like all materialists of type B, I argue that on her release from her black-and-white room, Mary makes cognitive progress. However, contrary to the so-called phenomenal concept strategy (henceforth PCS), I do not think that such progress can be accounted for in terms of the acquisition of new concepts. I also reject Tye’s recent account (...) of Mary’s cognitive progress as the acquisition of a “thing-knowledge.” What is crucial is not the Russellian opposition between knowing things and knowing truths but rather the Kantian opposition between conceptual and nonconceptual representations of the same thing (property). Mary’s phenomenal knowledge is here accounted for as the result of the cooperation of her newly acquired nonconceptual representation of the same phenomenal redness (the same thing) she had a conceptual representation before. As that new nonconceptual representation carries information about the same physical property she already represented but is now coded in analog rather than in digital form (Dretske, 1981), that nonconceptual representation can be accounted for in physical terms as Chalmers’s Master argument requires. Nevertheless, that representation can account for Mary’s cognitive progress since it carries information coded in analog form, something that the imprisoned she could never possess. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:HUME'S SCEPTICAL ARGUMENT AGAINST REASON In the section of the Treatise entitled Of scepticism with regard to reason Kume considers the mind as reflecting upon its own activities, monitors them as it were, and then adjusts them in accordance with certain principles and strategies. ^ What it discovers is that in drawing inferences, the mind sometimes errs. In the light of this knowledge, and in accordance with (...) rational principles of epistemic probabilities, it adjusts its response to any inference it makes from one of certainty to one with epistemic probability of a degree somewhat less than certainty. But this rational adjustment is itself the consequence of an inference, which will be subject to the same qualifications. By repeating this process, it seems that all certainty reduces to probability and all probability to zero. Hume's argument begins this way: Our reason must be consider 'd as a kind of cause, of which truth is the natural effect; but such-a-one as by _ the irruption of other causes, and by the inconstancy of our mental powers, may frequently be prevented. By this means all knowledge degenerates into probability ; and this probability is greater or less, according to our experience of the veracity or deceitfulness of our understanding, and according to the simplicity or intricacy of the question. 2 It is important to be clear on the logical structure of this argument. Consider an actual case of inference. This produces a state of belief or affirmation. Hume does not say that the inference does not produce truth, i.e., a true belief. But there is the possibility it does not. Nor is this a mere logical possibility. One can form the hypothesis about causes that this process of reasoning was in fact one which introduced an 91. element of error. One does not know that this hypothesis is true. But one does know that there is a certain probability that this causal hypothesis is true; as Hume puts it, it may frequently be true. Knowing that we have reasoned poorly sometimes (though not always) in the past, the hypothesis that we have on this occasion reasoned poorly has a certain probability, and we know this even though we have not verified the hypothesis for this particular occasion. On the basis of this unverified but nonetheless somewhat probable causal hypothesis we must as a matter of reason reduce the probability we attach to the belief or affirmation that was produced by the original inference. This reduction of probability is itself a matter of reasoning, however. Therefore about it, also, one can form the hypothesis that it is erroneous, and that the probability of the original affirmation was not reduced sufficiently. On the basis of this new hypothesis we must as a matter of reason reduce still further the probability of the first affirmation. And so on: as I reflect upon my use of reason, all the rules of logic require a continual diminution, and at last a total extinction of belief and evidence. (T183) The result here of the mind applying to its own activities what it discovers about itself is its ceasing to make any causal inferences. Feedback here yields the attitude of total scepticism, in the sense of rendering it reasonable that one ought totally to suspend judgment. To be sure, Hume does hold that no one is in fact such a total sceptic: Nature, by an absolute and uncontroulable necessity has determin 'd us to judge as well as to breathe and feel; nor can we any more forbear viewing certain objects in a stronger and fuller light, upon account of their customary connexion with a present impression, than we can hinder ourselves from thinking as long as we are awake, or see the 92. surrounding bodies, when we turn cur eyes towards them in broad sunshine. (T183) Inferences from sample to population cannot but be fallible, and this is the best we can do, given the logical gap between sample and population.The argument for scepticism with regard to reason concludes not only that such inferences are fallible, that they may be wrong, but more strongly that we have the strongest of reasons for supposing that they... (shrink)

According to the scrutability argument against physicalism, an a priori gap between the physical and conscious experience entails a lack of necessitation and the falsity of physicalism. This paper investigates the crucial premise of the scrutability argument: the inference from an a priori gap to a lack of necessitation. This premise gets its support from modal rationalism, according to which there are important, potentially constitutive, connections between a priori justification and metaphysical modality. I argue against (...) the strong form of modal rationalism that underwrites the scrutability argument and suggest a more moderate rationalist view. I offer a novel demonstrative reply to the scrutability argument, according to which demonstratives play a vital role in the generation of meaning for our representations of conscious experience. This connection between conscious experience and demonstratives, rather than a metaphysical gap generated by the truth of dualism, is the source of the epistemic gap between consciousness and the physical. (shrink)

Alter elaborates and defends an ambitious argument advanced by Chalmers against physicalism. As Alter notes, the argument is valid. But I will argue that not all its premises are true. In particular, it is false that all physical truths are purely structural. In denying this, I focus not on the objects of pure physical theory but on the homely, macroscopic objects of our daily lives.