Modern empiricism has been conditioned in large part by two dogmas. One is a belief in some fundamental cleavage between truths which are analytic, or grounded in meanings independently of matters of fact, and truth which are synthetic, or grounded in fact. The other dogma is reductionism: the belief that each meaningful statement is equivalent to some logical construct upon terms which refer to immediate experience. Both dogmas, I shall argue, are ill founded. One effect of abandoning them is, as (...) we shall see, a blurring of the supposed boundary between speculative metaphysics and natural science. Another effect is a shift toward pragmatism. (shrink)

David Lewis (1941-2001) was Class of 1943 University Professor of Philosophy at Princeton University. His contributions spanned philosophical logic, philosophy of language, philosophy of mind, philosophy of science, metaphysics, and epistemology. In On the Plurality of Worlds, he defended his challenging metaphysical position, "modal realism." He was also the author of the books Convention, Counterfactuals, Parts of Classes, and several volumes of collected papers.

In Minimal Rationality, Christopher Cherniak boldly challenges the myth of Man the the Rational Animal and the central role that the "perfectly rational...

I defend the view that the truth conditions of the ordinary indicative conditional are those of the material conditional. This is done via a discussion of assertability and by appeal to conventional implicature rather than conversational implicature.

Are humans rational? Various experiments performed over the last several decades have been interpreted as showing that humans are irrational we make significant and consistent errors in logical reasoning, probabilistic reasoning, similarity judgements, and risk-assessment, to name a few areas. But can these experiments establish human irrationality, or is it a conceptual truth that humans must be rational, as various philosophers have argued? In this book, Edward Stein offers a clear critical account of this debate about rationality in philosophy and (...) cognitive science. He discusses concepts of rationality - the pictures of rationality that the debate centres on - and assesses the empirical evidence used to argue that humans are irrational. He concludes that the question of human rationality must be answered not conceptually but empirically, using the full resources of an advanced cognitive science. Furthermore, he extends this conclusion to argue that empirical considerations are also relevant to the theory of knowedge - in other words, that epistemology should be naturalized. from the reviews: 'Stein has done a great service in bringing together all of the important arguments in the human rationality debate and providing a measured critical assessment of them.... This will be an important book and is essential reading for epistemologists, philosophers of mind, and cognitive and evolutionary psychologists.' Choice 'very considerable value... for professionals' Times Higher Education Supplement. (shrink)

In his justifiedly famous paper, “Elusive Knowledge” (Australasian Journal of Philosophy, 74:4, 1996), David Lewis presents a contextualist account of knowledge, which, like other contextualist accounts, depicts sceptical claims as involving application of a higher standard of knowledge than is applied in everyday ascriptions of knowledge. On Lewis’ account, the sceptic’s denials and the everyday ascriptions are made in different contexts, which allows them both to be true. His account gives detailed specification of how contexts are to be determined. My (...) paper points out that this view is unattractive to the sceptic, since it makes scepticism, even if true, completely disconnected from and irrelevant to the rest of our cognitive discourse. After arguing that the sceptic’s own ascriptions of knowledge (made outside the philosophy seminar room) can be explained in non-contextualist ways, I expound and criticise Lewis’ analysis of knowledge, taking up in particular a central component of his account, the “Rule of Attention”. In the central part of the paper I argue that the reasons given for the inclusion of the rule are all inadequate, and also that there are positive reasons for rejecting it. The final section of the paper argues that the excision of the Rule of Attention removed would leave Lewis’ account subject to serious counter- examples. (shrink)