The topics of a priori knowledge and a priori justification have long played a prominent part in epistemology and the theory of meaning. Recently there has been a surge of interest in the proper explication of these notions. These newly commissioned essays, by a distinguished, international group of philosophers, will have a substantial influence on later work in this area. They discuss the relations of the a priori to meaning, justification, definition and ontology; they consider the role of the notion in Leibniz, Kant, Frege and Wittgenstein; and they address its role in recent discussions in the philosophy of mind. Particular attention is also paid to the a priori in logic, science and mathematics. The authors exhibit a wide variety of approaches, some remaining sceptical of the notion itself, some proposing that it receive a non-factualist treatment, and others proposing novel ways of explicating and defending it. The editors' Introduction provides a helpful route into the issues.

This book is a collection of essays concerning the concept and existence of a priori knowledge, and the relationship between a priori knowledge and the related concepts of necessary truth and analytic truth.

What kind of knowledge can we get just by thinking? Two of the world's leading philosophers develop radically different positions, in alternating chapters, on the status and nature of a priori knowledge. The reader is able to follow up-close how a philosophical debate evolves.

This book provides a detailed and comprehensive account of the problem of a priori knowledge from a historical as well as a systematic perspective. The author explores Kant’s views in connection with the possibility of revision, something hardly, if at all, done in philosophical literature. Furthermore, the views of well-renowned philosophers such as Quine, Putnam, Kitcher, and Hale are discussed in detail and are put into a historical and systematic perspective. Finally, this book contains a glossary of important notions offering illuminating accounts of a priori knowledge and related notions and explains the relationship between a priori knowledge, fallibility and revision. The detailing of concepts such as ‘defeasibility’, ‘infallibility’, ‘falsifiability’ helps anyone reading philosophical literature to pin down the meaning of the terms and its implications in this context. The enriched and dual approach the author takes makes the book a very useful and lucid guide to the problem of a priori knowledge.

For centuries philosophers have attached much importance to a priori knowledge, but recent work in epistemology and experimental philosophy has questioned this. Leading philosophers discuss explanations of the a priori, challenges to its existence, the status of intuition, and the justification of belief—topics at the centre of current debate.

The distinction between the a priori and the a posteriori is an old and influential one. But both the distinction itself and the crucial notion of a priori knowledge face powerful philosophical challenges. Many philosophers worry that accepting the a priori is tantamount to accepting epistemic magic. In contrast, this Element argues that the a priori can be formulated clearly, made respectable, and used to do important epistemological work. The author's conception of the a priori and its role falls short of what some historical proponents of the notion may have hoped for, but it allows us to accept and use the notion without abandoning either naturalism or empiricism, broadly understood. This Element argues that we can accept and use the a priori without magic.

In recent years many influential philosophers have advocated that philosophy is an a priori science. Yet very few epistemology textbooks discuss a priori knowledge at any length, focusing instead on empirical knowledge and empirical justification. As a priori knowledge has moved centre stage, the literature remains either too technical or too out of date to make up a reasonable component of an undergraduate course. Edwin Mares book aims to rectify this. This book seeks to make accessible to students the standard topics and current debates within a priori knowledge, including necessity and certainty, rationalism, empiricism and analyticity, Quine's attack on the a priori, Kantianism, Aristotelianism, mathematical knowledge, moral knowledge, logical knowledge and philosophical knowledge.

In Cognition, Content, and the A Priori, Robert Hanna works out a unified contemporary Kantian theory of rational human cognition and knowledge. Along the way, he provides accounts of (i) intentionality and its contents, including non-conceptual content and conceptual content, (ii) sense perception and perceptual knowledge, including perceptual self-knowledge, (iii) the analytic-synthetic distinction, (iv) the nature of logic, and (v) a priori truth and knowledge in mathematics, logic, and philosophy. This book is specifically intended to reach out to two very different audiences: contemporary analytic philosophers of mind and knowledge on the one hand, and contemporary Kantian philosophers or Kant-scholars on the other. At the same time, it is also riding the crest of a wave of exciting and even revolutionary emerging new trends and new work in the philosophy of mind and epistemology, with a special concentration on the philosophy of perception. What is revolutionary in this new wave are its strong emphases on action, on cognitive phenomenology, on disjunctivist direct realism, on embodiment, and on sense perception as a primitive and proto-rational capacity for cognizing the world. Cognition, Content, and the A Priori makes a fundamental contribution to this philosophical revolution by giving it a specifically contemporary Kantian twist, and by pushing these new lines of investigation radically further.

A guide to today's most exciting research in academic philosophy with more than 30 distinguished scholars to contribute incisive and up-to-date critical surveys of the principal areas of research.

To what extent are meaning, on the one hand, and knowledge, on the other, determined by aspects of the 'outside world'? Internalism and Externalism in Semantics and Epistemology presents twelve specially written essays exploring these debates in metaphysics and epistemology and the connections between them. In so doing, it examines how issues connected with the nature of mind and language bear on issues about the nature of knowledge and justification (and vice versa). Topics discussed include the compatibility of semantic externalism and epistemic internalism, the variety of internalist and externalist positions (both semantic and epistemic), semantic externalism's implications for the epistemology of reasoning and reflection, and the possibility of arguments from the theory of mental content to the theory of epistemic justification (and vice versa).