Publisher's Note: The first systematic exposition of all the central topics in the philosophy of logic, Susan Haack's book has established an international reputation (translated into five languages) for its accessibility, clarity, conciseness, orderliness, and range as well as for its thorough scholarship and careful analyses. Haack discusses the scope and purpose of logic, validity, truth-functions, quantification and ontology, names, descriptions, truth, truth-bearers, the set-theoretical and semantic paradoxes, and modality. She also explores the motivations for a whole range of nonclassical systems of logic, including many-valued logics, fuzzy logic, modal and tense logics, and relevance logics.

Publisher's Note: Extended Rationality: A Hinge Epistemology provides a novel account of the structure of epistemic justification. Its central claim builds upon Wittgenstein's idea in On Certainty that epistemic justifications hinge on some basic assumptions and that epistemic rationality extends to these very hinges. It exploits these ideas to address major problems in epistemology, such as the nature of perceptual justifications, external world skepticism, epistemic relativism, the epistemic status of basic logical laws, of the Principle of the Uniformity of Nature, of our belief in the existence of the past and of other minds, and the nature of testimonial justification. Along the way, further technical issues, such as the scope of the Principle of Closure of epistemic operators under known entailment, the notion of transmission failure, and the existence of entitlements are addressed in new and illuminating ways.

Publisher's Note: Human beings naturally desire knowledge. But what is knowledge? Is it the same as having an opinion? Highlighting the major developments in the theory of knowledge from Ancient Greece to the present day, Jennifer Nagel uses a number of simple everyday examples to explore the key themes and current debates of epistemology.

Abstract: This paper describes a formal measure of epistemic justification motivated by the dual goal of cognition, which is to increase true beliefs and reduce false beliefs. From this perspective the degree of epistemic justification should not be the conditional probability of the proposition given the evidence, as it is commonly thought. It should be determined instead by the combination of the conditional probability and the prior probability. This is also true of the degree of incremental confirmation, and I argue that any measure of epistemic justification is also a measure of incremental confirmation. However, the degree of epistemic justification must meet an additional condition, and all known measures of incremental confirmation fail to meet it. I describe this additional condition as well as a measure that meets it. The paper then applies the measure to the conjunction fallacy and proposes an explanation of the fallacy.

Summary: Elgin and Van Cleve both answer the question in the title negatively. But whereas Van Cleve advocates a moderate version of foundationalism, Elgin defends a broadly coherentist view. According to her, justification is primarily a matter of explanatory coherence. The justification an individual belief enjoys is derived from the coherence of the overall system. In his essay, Van Cleve argues that, although coherence is indeed a source of justification, it cannot by itself render a belief completely justified. According to Van Cleve, no belief could be justified unless it were possible for some beliefs to acquire complete justification without receiving support from any other beliefs. In their respective responses, Elgin and Van Cleve continue the dispute, focusing on issues such as conjunction closure, corroboration by independent witnesses, empirical generalization, revisability, and the skeptical threat of being deluded.

Abstract: In this review I focus on the arguments advanced by Coady in the main task to which he addresses himself in Testimony: arguing the case against the reductive position, and in favour of a non-reductive conception of testimonial knowledge. I introduce some distinctions which I believe enable the subject to taken further.

Summary: This paper refutes the PR thesis according to which the hearer has such a special presumptive right to trust the speaker's assertion. The refutation consists of 1) arguing against that it is not possible for a hearer to obtain independent confirmation that a given speaker is trustworthy - that what she says will be true; 2) a full rejection to various positive arguments for a PR which may be made.

Abstract: We naturally evaluate the beliefs of others, sometimes by deliberate calculation, and sometimes in a more immediate fashion. Epistemic intuitions are immediate assessments arising when someone's condition appears to fall on one side or the other of some significant divide in epistemology. After giving a rough sketch of several major features of epistemic intuitions, this article reviews the history of the current philosophical debate about them and describes the major positions in that debate. Linguists and psychologists also study epistemic assessments; the last section of the paper discusses some of their research and its potential relevance to epistemology.

Summary: Sundar Sarukkai's Indian Philosophy and Philosophy of Science shows how the two very different approaches from East and West can illuminate each other. It is not an introduction to the philosophy of science, but rather an invitation to look at philosophy of science in a new way, using the approaches of classical Indian logic, in particular Navya Nyāya . Sarukkai's major thesis is that in the West philosophy of science tries to put logic into science, and that in the East Indian logic seeks to put science into logic. The naïve Western approach takes an abstract view of logic and formulates science using abstract logical and mathematical theories. Indian logic looks at the world and remains involved with the world throughout. Because of this, logical arguments have to involve contingent matters of fact or observation .Western readers may find the lack of distinction between induction and deduction disturbing, but the Eastern involvement with the world, not merely abstraction, reflects a different way of looking at what logic is and where its origins lie.

Summary: This book serves as an excellent introduction to Indian philosophy from the standpoint of the Nyãya-Vaisesika worldview. The book is divided into six chapters: (i) Introduction; (ii) Doubt (including sections like "Types of Doubt" and "Limits of Doubt"); (iii) Indian Logic (in which Dignaga, Dharmakïrti, and a "Summary of Themes in Indian Logic Relevant to Philosophy of Science" are discussed); (iv) Logic in Science: The Western Way (dealing, among other things, with induction, deduction, and laws and counterfactuals); (v) Science in Logic: The Indian Way? ; and (vi) Knowledge, Truth and Language (including sections with titles like the Pramäna Theory, Truth in Western and Indian Philosophies and Science, Effability, and Bhartrhai).