This collection of newly commissioned essays, edited by NYU philosophers Paul Boghossian and Christopher Peacocke, resumes the current surge of interest in the proper explication of the notion of a priori. The authors discuss the relations of the a priori to the notions of definition, meaning, justification, and ontology, explore how the concept figured historically in the philosophies of Leibniz, Kant, Frege, and Wittgenstein, and address its role in the contemporary philosophies of logic, mathematics, mind, and science. (...) The editors’ Introduction familiarizes the reader with the issues that are to be explored in detail in later parts of the anthology. (shrink)

The question whether we can have a priori knowledge, and if so to what extent, has lain at the center of philosophy practically since the beginning. For many philosophers, including Plato, Leibniz, Kant, Frege, Russell, Wittgenstein and most of the Logical Positivists, to name just a few, it seems to have been the problem around which everything else was made to turn. It's an interesting question why philosophers have been so obsessed with this problem and why they have been (...) inclined to assign it so much importance. One reason, no doubt, has to do with its relation to the possibility of philosophy itself. Although it has become fashionable in some circles to pretend otherwise, I don't really see that anyone out there has much idea how analytic philosophy is to be done, if not a priori; in particular, I don't really see that anyone has much idea how it is to be done without a hefty helping of a priori conceptual analysis.... (shrink)

Philosophers from Hume, Kant, and Wittgenstein to the recent realists and antirealists have sought to answer the question, What are concepts? This book provides a detailed, systematic, and accessible introduction to an original philosophical theory of concepts that Christopher Peacocke has developed in recent years to explain facts about the nature of thought, including its systematic character, its relations to truth and reference, and its normative dimension. Particular concepts are also treated within the general framework: perceptual concepts, logical (...) concepts, and the concept of belief are discussed in detail. The general theory is further applied in answering the question of how the ontology of concepts can be of use in classifying mental states, and in discussing the proper relation between philosophical and psychological theories of concepts. Finally, the theory of concepts is used to motivate a nonverificationist theory of the limits of intelligible thought. Peacocke treats content as broad rather than narrow, and his account is nonreductive and non-Quinean. Yet Peacocke also argues for an interactive relationship between philosophical and psychological theories of concepts, and he plots many connections with work in cognitive psychology. (shrink)

A stellar line-up of leading philosophers from around the world offer new treatments of a topic which has long been central to philosophical debate, and in ...

This chapter aims to provide materials with which to substantiate the claim that, under the appropriate circumstances, the notion of analyticity can help explain how one might have a priori knowledge even in the strong sense. It argues that Implicit Definition, properly understood, is completely independent of any form of irrealism about logic. The chapter defends the thesis of Implicit Definition against Quine's criticisms, and examines the sort of account of the apriority of logic that this doctrine is able to (...) provide. The chapter shows that, against the background of a rejection of indeterminacy, its insolubility cannot be conceded. It also argues that neither a non‐factualism about Frege‐analyticity, nor an error thesis about it, can plausibly fall short of an outright rejection of meaning itself. The chapter shows how the doctrine that appears to offer the most promising account of how we grasp the meanings of the logical constants. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy, Psychiatry, & Psychology 9.2 (2002) 131-136 [Access article in PDF] Language, Logic, and Recovery:A Commentary on van Staden Paul Falzer and Larry Davidson Keywords: analytic philosophy, experience, Frege, ordinary language, psychosis, psychotherapy. VAN STADEN'S PAPER, "Linguistic Markers of Recovery," takes on a formidable task. As he explains it, findings from a previously conducted empirical study suggest that recovery from a psychiatric condition can be predicted by certain (...) patterns of first person pronoun usage. His current paper explains how these patterns follow the mathematical logic of Gottlob Frege. van Staden's attempt to systematize the link between language and treatment outcome shows promise. We want to support his effort by raising a few caveats about the application of foundational systems in psychiatry and psychology, particularly the advisability of employing a logical system to explain recovery from mental illness. Along the way, we will be identifying related issues that the author may elect to take up in his future work.van Staden's proposal is inspired by Frege's logical system, but the paper is, at the very least, an innovative adaptation. There are various points where we are left to wonder just how much of this proposal is really Frege's. Nevertheless, the genesis of van Staden's ideas is so dependent that one would expect a fuller account of Frege's pivotal role in the development of modern logic, how his work precipitated what is known commonly as the linguistic turn, and why a logical system that was so well received when first articulated was eclipsed so quickly by Russell's Principia (1963) and Wittgenstein's Tractatus. (1981) These issues can be addressed separately and perhaps they should, because lacking an account of how Frege's philosophy developed and evolved makes the presentation appear somewhat sketchy and incomplete.Frege is portrayed in philosophical lore as the founder of modern logic and a pioneer of the movement that later became known as analytic philosophy. Dummett (1991) regards Frege's Foundations of Arithmetic (1968) as analytical philosophy's first work (p. 111). According to Quine (1955), "All modern logic owes an incalculable debt to Frege. If anyone can be singled out as the founder of mathematical logic, it is by all odds he" (p. 158). Rorty (1967) notes that analytic philosophy's tack of construing philosophical questions as turning on language use and construction challenges the entire tradition, from Parmenides forward. However, the challenge reaches fruition not in Frege, but in works of Moore, Wittgenstein, and Austin. Rather than [End Page 131] sharing the limelight with the great analytic philosophers, Frege has become somewhat of a peripheral figure, whose contribution is usually portrayed as transitional. In some respects, analytic philosophy was moving against Frege's, and later, Russell's logical systems as it was concomitantly countering the various strands of idealism expounded principally by Bradley and McTaggart (see Hacker 1996, 5-12). Almost from the outset, Fregean logic was caught in a cross fire, and the author is obligated to tell us why we should be attending to the pristine version and not the more fully developed approaches that came soon after.Such a justification undoubtedly would begin with the dictum most central to Frege's philosophical thought, that propositions are primary. For Kemp (1998), this declaration carries two interrelated implications: Logical propositions are the real bearers of truth and falsity, and reasoning is a movement from one judgment to another (see p. 218). Frege posits that propositions are independent of mind, grammar, and language use. Knowledge and cognition are embodied in, but do not predicate, judgment. Frege adamantly rejects the notion that philosophical concepts are grounded in psychological phenomena, such as perception, sense impression, and some traditional accounts of meaning. This is the doctrine known as psychologism, and Frege abjures the suggestion that psychology can contain the sciences or adjudicate their findings (Frege 1956; for a discussion of this doctrine, see Notturno 1989; Davidson 1988; Davidson and Cosgrove 1991). The dictum that propositions are primary dispels the commonly held idea that reasoning begins with perception and proceeds... (shrink)

This chapter aims to provide materials with which to substantiate the claim that, under the appropriate circumstances, the notion of analyticity can help explain how one might have a priori knowledge even in the strong sense. It argues that Implicit Definition, properly understood, is completely independent of any form of irrealism about logic. The chapter defends the thesis of Implicit Definition against Quine's criticisms, and examines the sort of account of the apriority of logic that this doctrine is able to (...) provide. The chapter shows that, against the background of a rejection of indeterminacy, its insolubility cannot be conceded. It also argues that neither a non‐factualism about Frege‐analyticity, nor an error thesis about it, can plausibly fall short of an outright rejection of meaning itself. The chapter shows how the doctrine that appears to offer the most promising account of how we grasp the meanings of the logical constants. (shrink)

The Realm of Reason develops a new, general theory of what it is for a thinker to be entitled to form a given belief. The theory locates entitlement in the nexus of relations between truth, content, and understanding. Peacocke formulates three principles of rationalism that articulate this conception. The principles imply that all entitlement has a component that is justificationally independent of experience. The resulting position is thus a form of rationalism, generalized to all kinds of content.To show how these (...) principles are realized in specific domains, Peacocke applies the theory in detail to several classical problems of philosophy, including the nature of perceptual entitlement, induction, and the status of moral thought. These discussions involve an elaboration of the structure of entitlement in ways that have applications in many other areas of philosophy. He also relates the theory to classical and recent rationalist thought, and to current issues in the theory of meaning, reference and explanation. In the course of these discussions, he proposes a general theory of the a priori.The focus of the work lies in the intersection of epistemology, metaphysics, and the theory of meaning, and will be of interest both to students and researchers in these areas, and to anyone concerned with the idea of rationality. (shrink)

Review of *New Essays on the A Priori*, an excellent collection edited by Paul Boghossian and Christopher Peacocke. Contributors include: Tyler Burge; Quassim Cassam; Philip Kitcher; Penelope Maddy; Hartry Field; Paul Horwich; Peter Railton; Stephen Yablo; Bob Hale; Crispin Wright; Frank Jackson; Stewart Shapiro; Michael Friedman; Martin Davies; Bill Brewer; and Thomas Nagel.

where F is a contradiction (I use his numbering). Tim says about these equivalences: (1) “modulo the implicit recognition of this equivalence, the epistemology of metaphysically modal thinking is a special case of the epistemology of counterfactual thinking. Whoever has what it takes to understand the counterfactual conditional and the elementary logical auxiliaries ~ and F has what it takes to understand possibility and necessity operators.” (158) (2) The idea that we evaluate metaphysically modal claims “by some quite different means (...) [from those we use to evaluate counterfactuals – CP] is highly fanciful, since it indicates a bizarre lack of cognitive economy and has no plausible explanation of where the alternative cognitive resources might come from” (162) (3) “the capacity to handle metaphysical modality is an “accidental” byproduct of the cognitive mechanisms that provide our capacity to handle counterfactual conditionals” (162). The biconditional corresponding to a proposed definition of a concept C may be necessary and a priori. But that leaves open these questions: (1) Does the definition contribute to an explanation of why what are in fact truths containing C are true? (The Explanation Question) (2) Does the definition contribute to an explanation of our knowledge of certain contents containing C? (Epistemic Question) (3) Does the definition contribute to an explanation of our understanding or grasp of contents containing C? (Understanding Question) I argue that applied to (17) and (18), considered as definitions, the answers to these three.. (shrink)

ANGLO-AMERICAN PHILOSOPHY OF SCIENCE has tended to define itself squarely against the kinds of so-called metaphysical approaches that have characterized so-called continental philosophy in the line of descent from Husserl. Indeed, Husserl’s project of phenomenological enquiry was the target of criticism by Frege—and later by Gilbert Ryle—which pretty much set the agenda for subsequent debate. That project seemed to them some form of argument that reveals his basically psychologistic approach, one that purported to address issues of truth, validity, rational warrant, (...) and so forth, but which fell far short of the logical rigor attained by thinkers in the analytic tradition. Thus Husserl might claim—like Descartes and Kant before him—to be raising questions about the a priori forms of human knowledge and experience, forms that were given or necessarily presupposed in every possible act of cognition. Moreover, he might claim to have advanced beyond Kant in distinguishing more clearly between formal and transcendental logic, or judgments whose necessity follows from the ground rules of this or that logically binding system of thought, and judgments that result from a rigorous reflection on the genesis and structure of human understanding in general. However these claims counted for little with Husserl’s critics in the other, that is, post-Fregean analytical camp. What they chiefly objected to in Husserl’s project was the approach via thoughts and ideas in the mind of some perceiving or reasoning subject, even though Husserl was very often at pains to reject any merely empirical or psychologistic construal of his claims. To their way of thinking, all this talk about transcendental truth- and validity-conditions was just another variant of the bad old Cartesian-Kantian retreat to consciousness as the last court of appeal in epistemological matters. Only by rejecting that entire line of thought—that is to say, by adopting a strictly analytical or logico-semantic approach—could philosophy at last break free of its attachment to naive, subject-centered, or metaphysical notions of meaning and truth. (shrink)

The claim that meaning is a normative notion has become very influential in recent philosophy: in the work of many philosophers it plays a pivotal role. Although one can trace the idea of the normativity of meaning at least as far back as Kant, much of the credit for its recent influence must go to Saul Kripke who made the thesis a centerpiece of his much-admired treatment of Wittgenstein’s discussion of rule-following and private language....

In this book, I will discuss three main topics: the roots and aims of scientific knowledge, scientific knowledge in society, and science and values I understand scientific knowledge as being a planned and continuous production of the general and common knowledge of scientific communities. I begin my discussion with a brief analysis of the main differences between sciences, on the one hand, and everyday experience, philosophies, religions, and ideologies, on the other. I define the concept of science as a set (...) of family resemblances (in Wittgenstein's sense). The sciences can be distinguished along three lines, in terms of the difference between empirical and non-empirical sciences, differences in degrees of theoretical and methodological structure among individual sciences and scientific disciplines. Scientific knowledge is based upon some grounds, paradigmatic knowledge bases. Scientific knowledge is founded on a unified paradigmatic knowledge base. The latter includes fundamental theories, basic facts, generally accepted empirical regularities (laws), scientific research methods, scientific explanations, and established relations to other sciences. Scientific knowledge in general is defined well in classical terms by the definition that knowledge is a true and rationally-justified belief. In this connection, scientific truth is relative, depending on the given paradigmatic knowledge base and on the precision and accessibility of the measurements and observations involved. In the book's first part, I consider the production and testing of scientific hypotheses, scientific explanations, the structure of scientific theories, and the problem of scientific realism. I consider explanation an integral part of a wider nexus of heuristic and theoretical activities in science like giving reasons, understanding, clarification, and founding. Continuous production of scientific explanations is a necessary condition for the systematic reproduction of scientific knowledge. Accordingly, it does not suffice to describe them in terms of the logical structure of the arguments on which they are based, but rather, scientific explanations ought to be given complete with an epistemic and pragmatic context of the explanation. I consider especially deductive-nomological, inductive-statistical, dispositional, teleological-functional, and genetic explanations. I emphasize the ever-increasing importance of explanations by analogy and by model. Orthogonal to these distinctions lies the distinction between causal and epistemic explanation. Epistemic explanations relate scientific discoveries to epistemic progress, and causal explanations are these epistemic explanations that relate scientific discoveries to reality too. Causal explanations inform us that certain changes occur in the world as agents of other changes, or rather, that certain changes are real consequences of other changes. Thus, by having explanations of causes, we can intervene in the world to induce by design certain changes in some course of phenomena. I consider scientific theories as logically and epistemically ordered wholeness of scientific knowledge in a realm of research that enables us to construct useful models of reality. After the discussion of different 'statement' views on theories and different interpretations of the theory-experience relation, I introduce the 'model' theoretical (non-statement) views on theories, especially the structural theory of science. The model views on theories transcend the realism-antirealism dualism by introducing models between theory and reality. Therefore, the question of scientific realism is not merely whether and, if so, which element(s), of scientific theories represent reality, but rather which conditions suffice to infer from a theory that one of its models truly expresses reality. In other words, under which conditions do models of a theory represent models of reality? Generally, models are just as much images of reality in a theory as they are images of a theory in reality. The actual problem of scientific realism doesn't originate in the observable-unobservable distinction (even if this distinction is otherwise theoretically loaded), but rather in ontological quandaries, of the sort especially encountered in modern physical theories such as quantum mechanics, relativity theory, and cosmological theories, although they are known to arise in other sciences as well. Scientific theories may be real, even if they describe nothing about the world. However, such theories can be given this status only if their formal, mathematical postulates exhibit some formal homology between reality and mathematical forms. The very fact that it is possible to describe reality with the help of mathematics even in cases, where every (representational, conceptual) language and thought fall short, would indicate that even mathematics itself is, in some sense, a part of reality, although 'outside' of the empirical world. It follows we have to distinguish the non-empirical reality and the empirical world. Formal objectivity and non-arbitrariness of theories do not emerge from either our language or thoughts, or from the world of facts, causes, and effects, but rather from non-empirical reality, which frames the world as some kind of objective transcendental condition for the possibility of the existence of the world, thoughts, and language. In the second part of the book, I consider the incorporation of scientific work and scientific knowledge into modern society and its relations to values and ethics. Production of scientific knowledge goes on as a parallel distributed process of a special kind of social (shared) cognition. The central part of this cognition is the presentation of parts of the world by scientific (theoretical) models which are warranted by the shared and public practice of justification, and in reflective acting in the world as it would. I consider various formal concepts of collective propositional knowledge (distributed, mutual, common knowledge). Scientific knowledge is an achievement to be ascribed to a scientific community or, indirectly, to all those who apply or expand it, rather than to individuals per se. It presents the continuous and partially planned production of non-trivial common knowledge of the research communities in modern societies. However, besides common knowledge, shared dispositional knowledge (knowledge how of scientific teams) and shared knowledge by acquiring (knowledge of fundamental similarities and differences in scientific teams) are parts of the real body of scientific knowledge. Scientific common knowledge implies the projection into idealized universal knowledge of all real or potentially rational and well-informed individuals. The respect of scientific knowledge thus presents the norm of rationality. Science as the intensively shared and socially distributed kind of cognition enters into modern society as a special kind of work (general work), as a productive force (social invention drive), and as a form of capital (human, social, cultural, informational, etc.). However any of these categories can adequately represent the socio-economical role of science in modern societies, and we are still waiting for a more adequate general concept that would theoretically cover the 'scientification' of modern societies. My thesis is that the most important general effect of scientification is (and will be) the growth of social processes that structurally resemble parallel distributed shared social cognition of science, and not so much the rise of the use of scientific knowledge and scientifically based information in all kinds of production. Scientification of modern societies inevitably includes a much stronger need for moral and social responsibility of scientists for their work and its effects in their local society and the global world. This need comes in contradiction with the quite large accepted idea (and even the 'norm') on value-free research. I discuss to some degree different arguments for the absence of non-epistemic values and ethical reasoning from science and find them non-convincing. The sound idea of value-free research lies in the need for the absence of categorical value statements from scientific explanations and theoretical deductions. Values and ethical judgment have, and sometimes they even have to play an important role in another part of research and its application in science or outside it. Not the value-loudness of research is a danger for science but its blind, non-reflective use. It leads to the ideologization and politicization of science. A similar danger lies in the purely value-neutrality of research. It leads to the instrumentalization of science to the technical or bureaucratic means for 'any' aims. (shrink)

This lively, engaging, and timely book consists of eighteen essays on the a priori, nine of them new and nine previously published. Because positions on the a p.

Epistemic relativism has the contemporary academy in its grip. Not merely in the United States, but seemingly everywhere, most scholars working in the humanities and the social sciences seem to subscribe to some form of it. Even where the label is repudiated, the view is embraced. Sometimes the relativism in question concerns truth, sometimes justification. The core impulse appears to be a relativism about knowledge. The suspicion is widespread that what counts as knowledge in one cultural, or broadly ideological, setting (...) need not count as knowledge in another. (shrink)

I am going to argue for a robust realism about magnitudes, as irreducible elements in our ontology. This realistic attitude, I will argue, gives a better metaphysics than the alternatives. It suggests some new options in the philosophy of science. It also provides the materials for a better account of the mind’s relation to the world, in particular its perceptual relations.

In this chapter a new problem about rule-following is outlined, one that is distinct both from Kripke’s and Wright’s versions of the problem. This new problem cannot be correctly responsed to, as Kripke’s can, by invoking Wright’s Intentional Account of rule-following. The upshot might be called, following Kant, an antinomy of pure reason: we both must — and cannot — make sense of someone’s following a rule. The chapter explores various ways out of this antinomy without here endorsing any of (...) them. (shrink)

This volume presents a series of influential essays by Paul Boghossian on the theory of content and on its relation to the phenomenon of a priori knowledge. The essays are organized under four headings: the nature of content; content and self-knowledge; knowledge, content, and the a priori; and colour concepts.

It is very common these days to come across the claim that the notions of mental content and linguistic meaning are normative notions. In the work of many philosophers, it plays a pivotal role. Saul Kripke made it the centerpiece of his influential discussion of Wittgenstein’s treatment of rulefollowing and private language; he used it to argue that the notions of meaning and content cannot be understood in naturalistic terms. Kripke’s formulations tend to be in terms of the notion (...) of linguistic meaning, but his argumentative strategy makes it clear that he holds both versions of the claim.... (shrink)

The paper is a defense of the project of explaining the a priori via the notion of meaning or concept possession. It responds to certain objections that have been made to this project—in particular, that there can be no epistemically analytic sentences that are not also metaphysically analytic, and that the notion of implicit definition cannot explain a priori entitlement. The paper goes on to distinguish between two different ways in which facts about meaning might generate facts about entitlement—inferential and (...) constitutive. It concludes by outlining a theory of the latter. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Christopher Norris HOME THOUGHTS FROM ABROAD: DERRIDA, AUSTIN, AND THE OXFORD CONNECTION THERE IS NO philosophical school or tradition that does not carry along with it a background narrative linking up present and past concerns. Most often this selective prehistory entails not only an approving account of ideas that fit in with the current picture but also an effort to repress or marginalize anytíiing that fails so to (...) fit. Bertrand Russell's History Of Western Philosophy is one fairly blatant example of mis strategy at work.1 The story it tells is a Whiggish account of how drinkers managed — against all the odds of metaphysical delusion — to come out at last (with Russell and his peers) on the high plateau oflogical consistency and truth. On the way to this dénouement Russell avails himself ofvarious techniques for pointing up die narrative drift. His coverage takes in all the accredited "major" thinkers, some of whose opinions Russell is hard put to summarize without remarking how nonsensical they appear from a modern (logical) point of view. Elsewhere — as with Leibniz or Kant — he takes the more accommodating line of winnowing out the structures of valid argument and consigning what remains to the history of dead metaphysical abstractions. It is this latter technique that has characterized the approach of analytical philosophers to the history of their discipline. The question is not so much, what did these drinkers mean or knowingly hope to achieve by posing the issues as they did? Rather it is to ask what techniques exist for translating their concerns into an up-to-date idiom based upon certain (mainly linguistic) terms of analytical enquiry. P. F. Strawson's revisionist reading of Kant is probably the best-known example of how such techniques can be used to achieve a distinctively modern understanding of otherwise recalcitrant texts.2 What remains of Kant after this cleaning-up 2 Philosophy and Literature operation is still "metaphysics" of a kind, but relieved of its excess conceptual baggage and couched (as Strawson would claim) in a "descriptive" rather than a "prescriptive" idiom. Thus philosophy comes to terms with its own errant precursors by explaining what they would presumably have said if equipped with die latest analytical tools. The result of such meuiods is to rewrite intellectual history from a standpoint of self-assured logical grasp where present concerns decide what shall count as the relevant or useful aspects ofpast tradition. And the same selective process goes to construct that typecast narrative which treats the "British" and die "Continental" styles of philosophizing as two completely separate, indeed antagonistic lines of descent. Thus it is taken for granted that the two sides are so far apart, with so little in the way of shared methods and assumptions, mat any kind of dialogue is certain to produce mere bafflement or cross-purpose talk. British philosophers with an interest in "Continental" theory feel themselves forced into a marginal role by the highly professionalized ethos that prevails within their discipline. This feeling is only strengthened by their more or less accepting the background mythology that explains how the two "traditions" grew up in a state of hostility often amounting to downright mutual contempt. There are several different versions of this story at present, but they all serve equally to reinforce the sense of incommensurable aims and languages. One (the "ordinary language" version) takes its lead from the later Wittgenstein in arguing that most of the problems that have long vexed philosophers — and continue to vex those "Continental" thinkers — result from dieir use ofa poindess metaphysicaljargon which puts them at odds with the commonsense wisdom of everyday usage. On this account, such thinkers have failed to learn the lesson bequeaüied by a long tradition of misguided speculative thought. They have persisted in errors and delusions of their own creating, hooked on a kind of malign verbal magic — "bewitchment by language," as Wittgenstein described it — which prevents them from seeing the plain sense ofthings. The other exemplary narrative is Uiat which takes not "ordinary language" but logic (or the modern refinements oflogic introduced by philosophers like Frege) as its reference point for deciding which episodes ofprevious or subsequent diought are to... (shrink)

The volume deals with the history of logic, the question of the nature of logic, the relation of logic and mathematics, modal or alternative logics (many-valued, relevant, paraconsistent logics) and their relations, including translatability, to classical logic in the Fregean and Russellian sense, and, more generally, the aim or aims of philosophy of logic and mathematics. Also explored are several problems concerning the concept of definition, non-designating terms, the interdependence of quantifiers, and the idea of an assertion sign. The contributions (...) concerned with Wittgenstein's investigations into the philosophy of logic and mathematics pursue issues relating to logical necessity, the undeniability of the law of the excluded middle, and the source of self-evidence, often characterized in the literature as the "rule-following considerations". Additionally, they examine Wittgenstein's attitudes towards the very idea of set-theory as a possible foundation for arithmetic. The volume also includes a number of contributions on specific issues concerning Wittgenstein's views on moral and religious judgements. (shrink)

The book records a series of philosophical exchanges between its authors, amounting to a debate extended over more than fifteen years. Its subject matter is the nature and scope of reason. A central case at issue is basic logical knowledge, and the justification for basic deductive inferences, but the arguments range far more widely, at stake the distinctions between analytic and synthetic, and between a priori and a posteriori. The discussion naturally involves problems about the conditions for linguistic understanding and (...) competence, and what it might be to grasp a concept or to have an intuition. Since reason is central to philosophical method, there are associated implications for how philosophy itself works, or should work. In particular, the discussion raises fundamental concerns about how to approach epistemology. -/- . (shrink)

I argue for the claim that there are instances of a priori justified belief – in particular, justified belief in moral principles – that are not analytic, i.e., that cannot be explained solely by the understanding we have of their propositions. §1–2 provides the background necessary for understanding this claim: in particular, it distinguishes between two ways a proposition can be analytic, Basis and Constitutive, and provides the general form of a moral principle. §§3–5 consider whether Hume's Law, properly interpreted, (...) can be established by Moore's Open Question Argument, and concludes that it cannot: while Moore's argument – appropriately modified – is effective against the idea that moral judgments are either reductively analyzable or Constitutive-analytic, a different argument is needed to show that they are not Basis-analytic. Such an argument is supplied in §6. §§7–8 conclude by considering how these considerations bear on recent discussions of “alternative normative concepts”, on the epistemology of intuitions, and on the differences between disagreement in moral domains and in other a priori domains such as logic and mathematics. (shrink)

Paul Boghossian defends a meaning‐based approach to the apriority of the propositions of logic. His model is based on the idea that the logical constants are implicitly defined by some of the axioms and inference rules in which they are involved, thereby offering an alternative to those theories that deny that grasp of meaning can contribute to the explanation of a thinker's entitlement to a particular type of transition or belief.

This essay distinguishes between metaphysical and epistemological conceptions of analyticity. The former is the idea of a sentence that is ‘true purely in virtue of its meaning’ while the latter is the idea of a sentence that ‘can be justifiably believed merely on the basis of understanding its meaning’. It further argues that, while Quine may have been right to reject the metaphysical notion, the epistemological notion can be defended from his critique and put to work explaining a priori justification. (...) Along the way, a number of further distinctions relevant to the theory of analyticity and the theory of apriority are made and their significance is explained. (shrink)

Review of Philip Pettit’s Rules, Reasons and Norms.

I. Recent years have witnessed a great resurgence of interest in the writings of the later Wittgenstein, especially with those passages roughly, Philosophical Investigations p)I 38 — 242 and Remarks on the Foundations of mathematics, section VI that are concerned with the topic of rules. Much of the credit for all this excitement, unparalleled since the heyday of Wittgenstein scholarship in the early IIJ6os, must go to Saul Kripke's I4rittgenstein on Rules and Private Language. It is easy to (...) explain why. To begin with, the dialectic Kripke uncovered from Wittgenstein's.. (shrink)

This book revives the study of conventional implicatures in natural language semantics. H. Paul Grice first defined the concept. Since then his definition has seen much use and many redefinitions, but it has never enjoyed a stable place in linguistic theory. Christopher Potts returns to the original and uses it as a key into two presently under-studied areas of natural language: supplements and expressives. The account of both depends on a theory in which sentence meanings can be multidimensional. (...) The theory is logically and intuitively compositional, and it minimally extends a familiar kind of intensional logic, thereby providing an adaptable, highly useful tool for semantic analysis. The result is a linguistic theory that is accessible not only to linguists of all stripes, but also philosophers of language, logicians, and computer scientists who have linguistic applications in mind. (shrink)

The Realm of Reason develops a new, general theory of what it is for a thinker to be entitled to form a given belief. The theory locates entitlement in the nexus of relations between truth, content, and understanding. Peacocke formulates three principles of rationalism that articulate this conception. The principles imply that all entitlement has a component that is justificationally independent of experience. The resulting position is thus a form of rationalism, generalized to all kinds of content. To show how (...) these principles are realized in specific domains, Peacocke applies the theory in detail to several classical problems of philosophy, including the nature of perceptual entitlement, induction, and the status of moral thought. These discussions involve an elaboration of the structure of entitlement in ways that have applications in many other areas of philosophy. He also relates the theory to classical and recent rationalist thought, and to current issues in the theory of meaning, reference and explanation. In the course of these discussions, he proposes a general theory of the a priori. The focus of the work lies in the intersection of epistemology, metaphysics, and the theory of meaning, and will be of interest both to students and researchers in these areas, and to anyone concerned with the idea of rationality. (shrink)

“Tell me," Wittgenstein once asked a friend, "why do people always say, it was natural for man to assume that the sun went round the earth rather than that the earth was rotating?" His friend replied, "Well, obviously because it just looks as though the Sun is going round the Earth." Wittgenstein replied, "Well, what would it have looked like if it had looked as though the Earth was rotating?” What would it have looked like if we looked (...) at all sciences from the viewpoint of Wittgenstein’s philosophy? Wittgenstein is undoubtedly one of the most influential philosophers of the twentieth century. His complex body of work has been analysed by numerous scholars, from mathematicians and physicists, to philosophers, linguists, and beyond. This volume brings together some of his central perspectives as applied to the modern sciences and studies the influence they may have on the thought processes underlying science and on the world view it engenders. The contributions stem from leading scholars in philosophy, mathematics, physics, economics, psychology and human sciences; all of them have written in an accessible style that demands little specialist knowledge, whilst clearly portraying and discussing the deep issues at hand. (shrink)

A theory of understanding -- Truth's role in understanding -- Critique of justificationist and evidential accounts -- Do pragmatist views avoid this critique? -- A realistic account -- How evidence and truth are related -- Three grades of involvement of truth in theories of understanding -- Anchoring -- Next steps -- Reference and reasons -- The main thesis and its location -- Exposition and four argument-types -- Significance and consequences of the main thesis -- The first person as a case (...) study -- Fully self-conscious thought -- Immunity to error through misidentification relative to the first person -- Can a use of the first-person concept fail to refer? -- Some conceptual roles are distinctive but not fundamental -- Implicit conceptions -- Implicit conceptions : motivation and examples -- Deflationary readings rejected -- The phenomenon of new principles -- Explanation by implicit conceptions -- Rationalist aspects -- Consequences : rationality, justification, understanding -- Transitional -- Applications to mental concepts -- Conceiving of conscious states -- Understanding and identity in other cases -- Constraints on legitimate explanations in terms of identity -- Why is the subjective case different? -- Attractions of the interlocking account -- Tacit knowledge, and externalism about the internal -- Is this the myth of the given? -- Knowledge of others' conscious states -- Communicability : between Frege and Wittgenstein -- Conclusions and significance -- 'Another I' : representing perception and action -- The core rule -- Modal status and its significance -- Comparisons -- The possession-condition and some empirical phenomena -- The model generalized -- Wider issues -- Mental action -- The distinctive features of action-awareness -- The nature and range of mental actions -- The principal hypothesis and its grounds -- The principal hypothesis : distinctions and consequences -- How do we know about our own mental actions? -- Concepts of mental actions and their epistemological significance -- Is this account open to the same objections as perceptual models of introspection? -- Characterizing and unifying schizophrenic experience -- The first person in the self-ascription of action -- Rational agency and action-awareness -- Representing thoughts -- The puzzle -- A proposal -- How the solution treats the constraints that generate the puzzle -- Relation to single-level treatments -- An application : reconciling externalism with distinctive self-knowledge. (shrink)

I agree with Sosa that intuitions are best thought of as attractions to believe a certain proposition merely on the basis of understanding it. However, I don't think it is constitutive of them that they supply strictly foundational justification for the propositions they justify, though I do believe that it is important that the intuition of a suitable subject be thought of as a prima facie justification for his intuitive judgment, independently of the reliability of his underlying capacities. I also (...) think that we need to be able to explain how mere understanding of a proposition can confer upon us an ability to have reliable intuitions, that we cannot simply take that idea for granted. And that when try to explain that, our best avenue for doing so is to take the intuitions as constituting the understanding of which they are said to be a manifestation. (shrink)

In this sweeping volume, Christopher Norris challenges the view that there is no room for productive engagement between mainstream analytic philosophers and thinkers in the post-Kantian continental line of descent. On the contrary, he argues, this view is simply the product of a limiting perspective that accompanied the rise of logical positivism. Norris reveals the various shared concerns that have often been obscured by parochial interests or the desire to stake out separate philosophical territory. He examines the problems that (...) emerged within the analytic tradition as a result of its turn against Husserlian phenomenology and its outright rejection of what came to be seen as a merely "psychologistic" approach to issues of meaning, knowledge, and truth. Norris shows how these problems have resurfaced in various forms from the heyday of logical empiricism to the present. He provides critical readings of such philosophers as Willard Quine, Thomas Kuhn, Donald Davidson, Hilary Putnam, Richard Rorty, Michael Dummett, Thomas Nagel, and John McDowell. He also offers a running discussion of Wittgenstein's influence and its harmful effect in promoting a placidly consensus-based theory of knowledge. On the continental side, Norris argues for a reassessment of Husserl's phenomenological project and its potential contribution to present-day Anglo-American debates in epistemology and philosophy of science. He discusses Bachelard, Canguilhem, and the French tradition of rationalisme applique as an alternative to Kuhnian conceptions of scientific paradigm change. This leads him to suggest a non-Wittgensteinian way around the problems that have dogged more traditional theories of knowledge andtruth. In two chapters on the work of Jacques Derrida, Norris explores the "supplementary" logic of deconstruction and compares it with other recent proposals for a nonstandard logic. Here again he stresses the community of interests between the two philosophical cultures and the extent to which continental thinking has engaged certain issues with a rigor largely ignored by Anglophone writers. By bringing a fresh perspective to questions that have often been considered the exclusive preserve of analytic philosophy, Norris offers an overview of current debates that is at once refreshingly open-minded and sure of its own argumentative bearings. (shrink)

This paper begins by considering Dummett's justificationist treatment of statements about the past in his book Truth and the Past (2004). Contrary to Dummett's position, there is no way of applying the intuitionistic distinction in the arithmetical case between direct and indirect methods of establishing a content to the case of past-tense statements. Attempts to do so either give the wrong truth conditions, or rely on notions not available to a justificationist position. A better, realistic treatment makes ineliminable use of (...) identity of state in its positive account of understanding of the past tense; this account can also be applied to other subject matters besides the past. A theory is developed of how realists should conceive of the relation between meaning and evidence. Points from this discussion are used in criticism of Wright's minimalist conception of truth. Three grades of possible involvement of truth and reference in a substantive theory of intentional content are distinguished, and reasons are given for thinking that a range of contents involve the highest degree of involvement of reference and truth in their substantive individuation. (shrink)

In this book, Livingston develops the political implications of formal results obtained over the course of the twentieth century in set theory, metalogic, and computational theory. He argues that the results achieved by thinkers such as Cantor, Russell, Godel, Turing, and Cohen, even when they suggest inherent paradoxes and limitations to the structuring capacities of language or symbolic thought, have far-reaching implications for understanding the nature of political communities and their development and transformation. Alain Badiou's analysis of logical-mathematical structures forms (...) the backbone of his comprehensive and provocative theory of ontology, politics, and the possibilities of radical change. Through interpretive readings of Badiou's work as well as the texts of Giorgio Agamben, Jacques Lacan, Jacques Derrida, Gilles Deleuze, and Ludwig Wittgenstein, Livingston develops a formally based taxonomy of critical positions on the nature and structure of political communities. These readings, along with readings of Parmenides and Plato, show how the formal results can transfigure two interrelated and ancient problems of the One and the Many: the problem of the relationship of a Form or Idea to the many of its participants, and the problem of the relationship of a social whole to its many constituents. (shrink)

The main impetus for my book came from the widespread acceptance of relativistic views about truth and knowledge within the Academy, especially within the humanities and the humanistic social sciences. In its introductory sections, though, I noted that there is one discipline within the humanities in which the influence of relativistic views is quite weak—namely, within analytic philosophy itself. Ironically, no sooner had the ink dried on the final version of my manuscript sometime in mid-2005—although, of course it had been (...) in the works for a number of years prior to that—than I began to become aware of a huge interest in certain kinds of relativistic views that was beginning to build within analytic philosophy. That interest—which is ongoing as I write—has been fueled to a considerable extent by the work of a younger generation of philosophers including John MacFarlane, Max Kölbel and Peter Lasersohn. (shrink)

This paper has five theses, which are intended to address the claims in Jerry Fodor's paper. (1) The question arises of the relation between the philosophical theory of concepts and epistemology. Neither is explanatorily prior to the other. Rather, each relies implicitly on distinctions drawn from the other. To explain what makes something knowledge, we need distinctions drawn from the theory of concepts. To explain the attitudes mentioned in a theory of concepts, we need to use the notion of knowledge. (...) (2) Concepts can have a normative dimension without their nature being interpretation‐dependent, and without their nature being mind‐dependent. The normative dimension traces back instead to the role of truth as a constitutive aim of judgement. (3) Conceptual combination is to be explained at the level of reference and semantic value. When we respect this fact, there is no difficulty in explaining compositionality for epistemically‐constrained concepts. (4) Epistemically‐constrained theories of concepts are committed to the applicability of the notion of the a priori. They are not committed to the applicability of the notion of analyticity, where this is construed as truth purely in virtue of meaning or the identity of concepts. (5) Possession of a concept has causal‐explanatory powers, whether given by a possession condition in the form presented in A Study of Concepts, or by possession of an implicit conception. A possession‐condition theory of concepts need not be a form of dispositionalism. (shrink)

Since the time of Aristotle, metaphysics has been an ill-defined term. This paper defines it as a logically idempotent metalinguistic identity of reality which couples the two initial ingredients of awareness: perceptual reality (the basis of physics), and cognitive-perceptual syntax, a formalization of mind. The explanation has been reduced to a few very simple, clearly explained mathematical ingredients. This paper contains no assumptions or arguable assertions, and is therefore presented as an advanced formulation of logic which has been updated for (...) meaningful reference to the structure of reality at large. This structure, called the Cognitive-Theoretic Model of the Universe or CTMU, resolves the problems attending Cartesian dualism by replacing dualism with the mathematical property of self-duality, meaning (for reality-theoretic purposes) the quantum-level invariance of identity under permutation of objective and spatiotemporal data types. The CTMU takes the form of a global coupling or superposition of mind and physical reality in a self-dual metaphysical identity M:L<-->U, which can be intrinsically developed into a logico-geometrically self-dual, ontologically self- contained language incorporating its own medium of existence and comprising its own model therein. (shrink)

Paul Horwich presents a bold new interpretation of Wittgenstein's later work. He argues that it is Wittgenstein's radically anti-theoretical metaphilosophy - and not his identification of the meaning of a word with its use - that underpins his discussions of specific issues concerning language, the mind, mathematics, knowledge, art, and religion.

Usually, analytic philosophy is thought of as standing firmly within the tradition of empiricism, but recently attention has been drawn to the strongly Kantian features that have characterized this philosophical movement throughout a considerable part of its history. Those charting the history of early analytic philosophy sometimes point to a more Kantian stream of thought feeding it from both Frege and Wittgenstein, and as countering a quite different stream flowing from the early Russell and Moore. In line with this (...) general assessment, Michael Friedman has pointed to the specifically Kantian features of the approach of Carnap and other members of the Vienna Circle. For Friedman, the positivists should be seen as having emerged from the tradition of late nineteenth-century neo-Kantianism. Although they had explicitly rejected Kant’s analysis of geometric truth and his key concept of the “synthetic a priori” because of dramatic changes within science itself, this move should not be seen as any simple abandonment of Kantianism. Rather, the positivists had redefined the nature of the Kantian a priori, by axiomatizing, relativizing and historicizing it, so as to fit with the results of the contemporary sciences. (shrink)

The concept of randomness as applied to number sequences is important to the study of the relationship between the foundations of mathematics and physics. A reason is that while randomness is often defined in mathematical-logical terms, the only way one has to generate random number sequences is by means of repetitive physical processes. This paper will examine the question: What definition of randomness is correct in the sense of being the weakest allowable? Why this question is so important will become (...) clear during the course of the discussion.The main body of this paper is divided into three sections. Section 1. discusses the use of probability theory to describe various statistical processes and some of the alternative definitions of randomness that have been proposed.In Section 2. a criterion which a definition of randomness should satisfy is proposed. (shrink)

Alain Badiou is a highly original, indeed decidedly iconoclastic thinker whose work has ranged widely over areas of equal concern to philosophers in the ‘continental’ and mainstream analytic traditions. These areas include ontology, epistemology, ethics, politics, and – above all – philosophy of mathematics. It is unfortunate, and symptomatic of prevailing attitudes, that his work has so far receivedminimal attention from commentators in the analytic line of descent. Here I try to help the process of reception along by describing Badiou’s (...) remarkably ambitious approach to issues of mathematical (more specifically: of set-theoretical) ontology, and by explaining just where his project stands in relation to some major issues within current analytic debate. Chief among them are: the issue between realists and anti-realists – along with various avowed middle-ground or compromise solutions – and those oddly tenacious problems-from-Wittgenstein (e.g., concerning what it means to follow a rule) that have so preoccupied philosophers over the past decade. In particular I stress the unusual, indeed unique combination in his thought of high formal rigour and conceptual clarity allied to a speculative scope and inventiveness which tend to make those other discussions appear somewhat self-absorbed and parochial. Most importantly, Badiou engages these issues at a level of creative as well as of technical or analytic grasp, which puts his thinking closely in touch with the way that set theory has itself evolved through a constant process of – in Badiou’s phrase – ‘turning paradoxes into concepts.’ I also discuss his strong and principled rejection of the ‘linguistic turn’ in its manifold (analytic and continental) variants, and his idea of the ‘event’ as that which inherently eludes or surpasses the conceptual resources of any received ontology, whether in mathematics and the natural sciences or in the history of genuinely epochal changes in politics and ethics. All in all, I put the case for Badiou as a thinker of the first importance not only for the impressive range, depth and originality of his work, but also because it points to an escape-route from some of the more cramped or windowless quarters of present-day philosophic thought. (shrink)

Alain Badiou is a highly original, indeed decidedly iconoclastic thinker whose work has ranged widely over areas of equal concern to philosophers in the ‘continental’ and mainstream analytic traditions. These areas include ontology, epistemology, ethics, politics, and – above all – philosophy of mathematics. It is unfortunate, and symptomatic of prevailing attitudes, that his work has so far receivedminimal attention from commentators in the analytic line of descent. Here I try to help the process of reception along by describing Badiou’s (...) remarkably ambitious approach to issues of mathematical (more specifically: of set-theoretical) ontology, and by explaining just where his project stands in relation to some major issues within current analytic debate. Chief among them are: the issue between realists and anti-realists – along with various avowed middle-ground or compromise solutions – and those oddly tenacious problems-from-Wittgenstein (e.g., concerning what it means to follow a rule) that have so preoccupied philosophers over the past decade. In particular I stress the unusual, indeed unique combination in his thought of high formal rigour and conceptual clarity allied to a speculative scope and inventiveness which tend to make those other discussions appear somewhat self-absorbed and parochial. Most importantly, Badiou engages these issues at a level of creative as well as of technical or analytic grasp, which puts his thinking closely in touch with the way that set theory has itself evolved through a constant process of – in Badiou’s phrase – ‘turning paradoxes into concepts.’ I also discuss his strong and principled rejection of the ‘linguistic turn’ in its manifold (analytic and continental) variants, and his idea of the ‘event’ as that which inherently eludes or surpasses the conceptual resources of any received ontology, whether in mathematics and the natural sciences or in the history of genuinely epochal changes in politics and ethics. All in all, I put the case for Badiou as a thinker of the first importance not only for the impressive range, depth and originality of his work, but also because it points to an escape-route from some of the more cramped or windowless quarters of present-day philosophic thought. (shrink)

Norris presents a series of closely linked chapters on recent developments in epistemology, philosophy of language, cognitive science, literary theory, musicology and other related fields. While to this extent adopting an interdisciplinary approach, Norris also very forcefully challenges the view that the academic "disciplines" as we know them are so many artificial constructs of recent date and with no further role than to prop up existing divisions of intellectual labour. He makes his case through some exceptionally acute revisionist readings of (...) diverse thinkers such as Derrida, Paul de Man, Wittgenstein, Chomsky, Michael Dummett and John McDowell. In each instance Norris stresses the value of bringing various trans-disciplinary perspectives to bear while none-the-less maintaining adequate standards of area-specific relevance and method. Most importantly he asserts the central role of recent developments in cognitive science as pointing a way beyond certain otherwise intractable problems in philosophy of mind and language. (shrink)

For a wide range of concepts, a thinker’s understanding of what it is for a thing to fall under the concept plausibly involves knowledge of an identity. It involves knowledge that the thing has to have the same property as is exemplified in instantiation of the concept in some distinguished, basic instance. This paper addresses the question: can we apply this general model of the role of identity in understanding to the case of subjective, conscious states? In particular, can we (...) explain our understanding of what it is for someone else to be in a particular conscious state in terms of our knowledge of the relation of identity which that state bears to some of our own states?[1] This is a large issue, with many ramifications both within and beyond the philosophy of mind; so let me give a map for the route I aim to take. We first need to consider the features of explanations of concepts in terms of identity in domains outside the mental. There are substantial constraints on legitimate explanation of concepts in terms of identity. There are also reasons that it is harder to meet these constraints in the case of concepts of conscious states than it is in other cases. I will go on to suggest a way in which we can overcome the special difficulties of the conscious case, and to try to elaborate the nature both of our understanding of first person applications of concepts of conscious states, and of our grasp of an identity relation applied to these states. A positive account of understanding in this area, as in any other, has to dovetail with a credible epistemology of conscious states in oneself and in others. I will offer something under that head, and say how the resulting position steers a middle way distinct from each of the two classic rival positions on conscious states of the later Wittgenstein on the one hand, and of Frege on the other. (shrink)

Normativity is both one of the most important and ubiquitous of phenomena and, despite its historical centrality to philosophy, one of the least understood. The idea that there might be objective, attitude-independent, truths about what we ought to do (morality), what we ought to believe (rationality) or what we ought to appreciate (aesthetics), has always seemed very puzzling to philosophers, even though ordinary thought seems steeped in such judgments. -/- Up until quite recently, the received view was that there was (...) no good way to make sense of such a realistic, objectivist construal of normativity, that we have to make do with one or another anti-realistic alternative, principally, Expressivism, some forms of Constructivism, or Relativism. However, the well-known difficulties with these anti-realist options have motivated philosophers, most especially younger ones, to take a fresh look at Realism and to assess and develop it in new ways. Sometimes the result is that Realism is seen to be better protected against classic objections than had been previously realized; at others, the result seems to be that Realism is even harder to defend, and perhaps even harder to understand, than traditional thinking had allowed. The upshot is a vigorous and stimulating debate that is just beginning to take shape and whose outcome is far from resolved. -/- The main impulse behind the present volume was to commission new work on Normative Realism by a mix of senior and junior scholars to give the philosophical community a useful sense of the current state of play on this central topic. ... (shrink)