In this companion volume to Warrant: The Current Debate, Plantinga develops an original approach to the question of epistemic warrant; that is what turns true belief into knowledge. He argues that what is crucial to warrant is the proper functioning of one's cognitive faculties in the right kind of cognitive environment.

Sorensen here offers a unified solution to a large family of philosophical puzzles and paradoxes through a study of "blindspots": consistent propositions that cannot be rationally accepted by certain individuals even though they might by true.

1 Knowledge and Justification This book is an investigation of one central problem which arises in the attempt to give a philosophical account of empirical ...

First Published in 1997. Routledge is an imprint of Taylor & Francis, an informa company.

For many years G. E. Moore asked himself what was wrong with sentences like ‘I went to the pictures last Tuesday, but I don't believe that I did’, or ‘I believe that he has gone out, but he has not’. He discussed the problem in 1912 in his Ethics , and was still discussing it in 1944 in a paper to the Moral Sciences Club at Cambridge—an event we know about from a letter of Wittgenstein that I shall quote in (...) a moment. Throughout these years of pondering, Moore retained a remarkably stable vocabulary for setting out his solution. Briefly, he held this: saying ‘I went to the pictures last Tuesday, but I don't believe that I did’ is absurd, but not self-contradictory. Not self-contradictory, because ‘it may quite well be true’; yet absurd, because the speaker expressly repudiates, in the second part of the sentence, a belief which he implies by uttering the first part. The panoply of distinctions which subtends this doctrine—sentence v. utterance of sentence, saying v. implying, contradiction v. absurdity—was subjected to keen scrutiny a generation or so ago, and much of it has now passed into philosophical lore as a discussion of ‘Moore's Paradox’. (shrink)

I "argue" that by knowingly accepting a set of propositions which is logically inconsistent, An epistemic agent need not violate any valid epistemic rule. Those types of logically inconsistent sets which it is permissible to accept are distinguished from those which may not be accepted. The results of the discussion are applied to the lottery paradox set of propositions and the preface paradox set. I also "suggest" that it may be an epistemic virtue to accept some inconsistent sets.