Download or read book Toposes and Local Set Theories written by John L. Bell and published by Courier Corporation. This book was released on 2008-01-01 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text introduces topos theory, a development in category theory that unites important but seemingly diverse notions from algebraic geometry, set theory, and intuitionistic logic. Topics include local set theories, fundamental properties of toposes, sheaves, local-valued sets, and natural and real numbers in local set theories. 1988 edition.