I argue that to have an attitude is, primarily, (1.) to have a dispositional profile that matches, to an appropriate degree and in appropriate respects, a stereotype for that attitude, typically grounded in folk psychology, and secondarily, (2.) in some cases also to meet further stereotypical attitude-specific conditions. To have an attitude, on the account I will recommend here, is mainly a matter of being apt to interact with the world in patterns that ordinary people would regard as characteristic of (...) having that attitude. I contrast this view with alternative views that treat having an attitude as a matter of possessing some particular internally stored representational content or some other "deep" structural feature. (shrink)

An unabridged edition with updated footnotes and layout, to include: Recent Criticisms of "Consciousness" - Instinct and Habit - Desire and Feeling - Influence of Past History on Present Occurrences in Living Organisms - Psychological and Physical Causal Laws - Introspection - The Definition of Perception - Sensations and Images - Memory - Words and Meaning - General Ideas and Thought - Belief - Truth and Falsehood - Emotions and Will - Characteristics of Mental Phenomena.

First published in 1946, _History of Western Philosophy_ went on to become the best-selling philosophy book of the twentieth century. A dazzlingly ambitious project, it remains unchallenged to this day as the ultimate introduction to Western philosophy. Providing a sophisticated overview of the ideas that have perplexed people from time immemorial, it is 'long on wit, intelligence and curmudgeonly scepticism', as the _New York Times_ noted, and it is this, coupled with the sheer brilliance of its scholarship, that has made (...) Russell's _History of Western Philosophy_ one of the most important philosophical works of all time. (shrink)

The conviction that intentional realism requires intentional reductionism has the philosophy of mind in its grip. Thus, Jerry Fodor: .... It is worth noting — if only because it so seldom is nowadays — that this rationale for the naturalistic conviction begs a question that doesn't obviously deserve to be begged. Why, indeed, must we think that no property can be real unless it is identical with, or supervenient upon, the properties that appear in the catalogues provided by physics? There (...) is, I think, no obvious answer. (shrink)

The paper tries to spell out a connection between deductive logic and rationality, against Harman's arguments that there is no such connection, and also against the thought that any such connection would preclude rational change in logic. One might not need to connect logic to rationality if one could view logic as the science of what preserves truth by a certain kind of necessity (or by necessity plus logical form); but the paper points out a serious obstacle to any such (...) view. (shrink)

In some previous work, I tried to give a concept-based account of the nature of our entitlement to certain very basic inferences (see the papers in Part III of Boghossian 2008b). In this previous work, I took it for granted, along with many other philosophers, that we understood well enough what it is for a person to infer. In this paper, I turn to thinking about the nature of inference itself. This topic is of great interest in its own right (...) and surprisingly understudied by philosophers. A correct understanding of inference promises to shed light on a number of important topics. In particular, it threatens to undermine the sort of concept-based story about entitlement to which I had previously been attracted. (shrink)

What psychological and philosophical significance should we attach to recent efforts at computer simulations of human cognitive capacities? In answering this question, I find it useful to distinguish what I will call "strong" AI from "weak" or "cautious" AI. According to weak AI, the principal value of the computer in the study of the mind is that it gives us a very powerful tool. For example, it enables us to formulate and test hypotheses in a more rigorous and precise fashion. (...) But according to strong AI, the computer is not merely a tool in the study of the mind; rather, the appropriately programmed computer really is a mind, in the sense that computers given the right programs can be literally said to. (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.

ABNER SHIMONY of the Paradox A PHILOSOPHICAL PUPPET PLAY Dramatis personae: Zeno , Pupil, Lion Scene: The school of Zeno at Elea. Pup. Master! ...

Proofs and Refutations is essential reading for all those interested in the methodology, the philosophy and the history of mathematics. Much of the book takes the form of a discussion between a teacher and his students. They propose various solutions to some mathematical problems and investigate the strengths and weaknesses of these solutions. Their discussion (which mirrors certain real developments in the history of mathematics) raises some philosophical problems and some problems about the nature of mathematical discovery or creativity. Imre (...) Lakatos is concerned throughout to combat the classical picture of mathematical development as a steady accumulation of established truths. He shows that mathematics grows instead through a richer, more dramatic process of the successive improvement of creative hypotheses by attempts to 'prove' them and by criticism of these attempts: the logic of proofs and refutations. (shrink)

It is my aim in this paper to show that the contemporary assimilation of essence to modality is fundamentally misguided and that, as a consequence, the corresponding conception of metaphysics should be given up. It is not my view that the modal account fails to capture anything which might reasonably be called a concept of essence. My point, rather, is that the notion of essence which is of central importance to the metaphysics of identity is not to be understood in (...) modal terms or even to be regarded as extensionally equivalent to a modal notion. The one notion is, if I am right, a highly refined version of the other; it is like a sieve which performs a similar function but with a much finer mesh. (shrink)

How should one react when one has a belief, but knows that other people—who have roughly the same evidence as one has, and seem roughly as likely to react to it correctly—disagree? This paper argues that the disagreement of other competent inquirers often requires one to be much less confident in one’s opinions than one would otherwise be.

First published in 2000. Routledge is an imprint of Taylor & Francis, an informa company.

First published in 1903, _Principles of Mathematics_ was Bertrand Russell’s first major work in print. It was this title which saw him begin his ascent towards eminence. In this groundbreaking and important work, Bertrand Russell argues that mathematics and logic are, in fact, identical and what is commonly called mathematics is simply later deductions from logical premises. Highly influential and engaging, this important work led to Russell’s dominance of analytical logic on western philosophy in the twentieth century.

This is a book that no one but Weyl could have written--and, indeed, no one has written anything quite like it since.

The paper argues that, although a distinction between a priori and a posteriori knowledge (or justification) can be drawn, it is a superficial one, of little theoretical significance. The point is not that the distinction has borderline cases, for virtually all useful distinctions have such cases. Rather, it is argued by means of an example, the differences even between a clear case of a priori knowledge and a clear case of a posteriori knowledge may be superficial ones. In both cases, (...) experience plays a role that is more than purely enabling but less than strictly evidential. It is also argued that the cases at issue are not special, but typical of a wide range of others, including knowledge of axioms of set theory and of elementary logical truths. Attempts by Quine and others to make all knowledge a posteriori (‘empirical’) are repudiated. The paper ends with a call for a new framework to be developed for analysing the epistemology of cognitive uses of the imagination. (shrink)

Stephen Cole Kleene was one of the greatest logicians of the twentieth century and this book is the influential textbook he wrote to teach the subject to the next generation. It was first published in 1952, some twenty years after the publication of Godel's paper on the incompleteness of arithmetic, which marked, if not the beginning of modern logic. The 1930s was a time of creativity and ferment in the subject, when the notion of computable moved from the realm of (...) philosophical speculation to the realm of science. This was accomplished by the work of Kurt Gode1, Alan Turing, and Alonzo Church, who gave three apparently different precise definitions of computable. When they all turned out to be equivalent, there was a collective realization that this was indeed the right notion. Kleene played a key role in this process. One could say that he was there at the beginning of modern logic. He showed the equivalence of lambda calculus with Turing machines and with Godel's recursion equations, and developed the modern machinery of partial recursive functions. This textbook played an invaluable part in educating the logicians of the present. It played an important role in their own logical education.". (shrink)

In this brief book one of the most distinguished living American philosophers takes up the question of whether ethical judgments can properly be considered objective--a question that has vexed philosophers over the past century. Reviewing what he deems the disastrous consequences of ontology's influence on analytic philosophy--in particular, the contortions it imposes upon debates about the objective of ethical judgments--Putnam proposes abandoning the very idea of ontology.

One of the fundamental theses of this book is that logical consequence and logical truth are not simply given, but arise as conventions among the users of logic. Thus Syverson explains convention within a game-theoretic framework, as a kind of equilibrium between the strategies of players in a game where they share common knowledge of events—a revisiting of Lewis's Convention that argues that convention can be reasonably treated as coordination equilibria. Most strikingly, a realistic solution is provided for Gray's classic (...) coordination problem, wherein two generals can only communicate with each other through unreliable means. (shrink)

In this study two strands of inferentialism are brought together: the philosophical doctrine of Brandom, according to which meanings are generally inferential roles, and the logical doctrine prioritizing proof-theory over model theory and approaching meaning in logical, especially proof-theoretical terms.

In 1972, philosopher of science Thomas Kuhn threw an ashtray at Errol Morris. This book is the result. At the time, Morris was a graduate student. Now we know him as one of the most celebrated and restlessly probing filmmakers of our time, the creator of such classics of documentary investigation as The Thin Blue Line and The Fog of War. Kuhn, meanwhile, was—and, posthumously, remains—a star in his field, the author of The Structure of Scientific Revolutions, a landmark book (...) that has sold well over a million copies and introduced the concept of “paradigm shifts” to the larger culture. And Morris thought the idea was bunk. The Ashtray tells why—and in doing so, it makes a powerful case for Morris’s way of viewing the world, and the centrality to that view of a fundamental conception of the necessity of truth. “For me,” Morris writes, “truth is about the relationship between language and the world: a correspondence idea of truth.” He has no patience for philosophical systems that aim for internal coherence and disdain the world itself. Morris is after bigger game: he wants to establish as clearly as possible what we know and can say about the world, reality, history, our actions and interactions. It’s the fundamental desire that animates his filmmaking, whether he’s probing Robert McNamara about Vietnam or the oddball owner of a pet cemetery. Truth may be slippery, but that doesn’t mean we have to grease its path of escape through philosophical evasions. Rather, Morris argues powerfully, it is our duty to do everything we can to establish and support it. In a time when truth feels ever more embattled, under siege from political lies and virtual lives alike, The Ashtray is a bracing reminder of its value, delivered by a figure who has, over decades, uniquely earned our trust through his commitment to truth. No Morris fan should miss it. (shrink)

Comprehensive account of constructive theory of first-order predicate calculus. Covers formal methods including algorithms and epi-theory, brief treatment of Markov’s approach to algorithms, elementary facts about lattices and similar algebraic systems, more. Philosophical and reflective as well as mathematical. Graduate-level course. 1963 ed. Exercises.

Introduction to the Two Volumes xi PART ONE: G. E. MOORE ON ETHICS, EPISTEMOLOGY, AND PHILOSOPHICAL ANALYSIS 1 CHAPTER 1 Common Sense and Philosophical Analysis 3 CHAPTER 2 Moore on Skepticism, Perception, and Knowledge 12 CHAPTER 3 Moore on Goodness and the Foundations of Ethics 34 CHAPTER 4 The Legacies and Lost Opportunities of Moore’s Ethics 71 Suggested Further Reading 89 PART TWO: BERTRAND RUSSELL ON LOGICAL AND LINGUISTIC ANALYSIS 91 CHAPTER 5 Logical Form, Grammatical Form, and the Theory of (...) Descriptions 93 CHAPTER 6 Logic and Mathematics: The Logicist Reduction 132 CHAPTER 7 Logical Constructions and the External World 165 CHAPTER 8 Russell’s Logical Atomism 182 Suggested Further Reading 194 PART THREE: LUDWIG WITTGENSTEIN’S TRACTATUS 195 CHAPTER 9 The Metaphysics of the Tractatus 197 CHAPTER 10 Meaning, Truth, and Logic in the Tractatus 214 CHAPTER 11 The Tractarian Test of Intelligibility and Its Consequences 234 Suggested Further Reading 254 PART FOUR: LOGICAL POSITIVISM, EMOTIVISM, AND ETHICS 255 CHAPTER 12 The Logical Positivists on Necessity and Apriori Knowledge 257 CHAPTER 13 The Rise and Fall of the Empiricist Criterion of Meaning 271 CHAPTER 14 Emotivism and Its Critics 300 CHAPTER 15 Normative Ethics in the Era of Emotivism: The Anticonsequentialism of Sir David Ross 320 Suggested Further Reading 346 PART FIVE: THE POST-POSITIVIST PERSPECTIVE OF THE EARLY W. V. QUINE 349 CHAPTER 16 The Analytic and the Synthetic, the Necessary and the Possible, the Apriori and the Aposteriori 351 CHAPTER 17 Meaning and Holistic Verificationism 378 Suggested Further Reading 406 Index 409. (shrink)

The present collection brings together in a convenient form the seminal articles in the philosophy of mathematics by these and other major thinkers.

The present text book is intended as an introduction to elementary logic. Its content, structure, and manner have been determined in large measure - perhaps 'caused' is the better word- by certain desiderata about which the reader should be informed at the outset. The leading idea is that even an introductory treatment of logic may profitably be fashioned around a rigorous framework.

Are there objects that are “thin” in the sense that their existence does not make a substantial demand on the world? Frege famously thought so. He claimed that the equinumerosity of the knives and the forks suffices for there to be objects such as the number of knives and the number of forks, and for these objects to be identical. The idea of thin objects holds great philosophical promise but has proved hard to explicate. This book attempts to develop the (...) needed explanations by drawing on some Fregean ideas. First, to be an object is to be a possible referent of a singular term. Second, singular reference can be achieved by providing a criterion of identity for the would-be referent. The second idea enables a form of easy reference and thus, via the first idea, also a form of easy being. Paradox is avoided by imposing a predicativity restriction on the criteria of identity. But the abstraction based on a criterion of identity may result in an expanded domain. By iterating such expansions, a powerful account of dynamic abstraction is developed. (shrink)