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Toposes and Local Set Theories: An Introduction (Dover Books on Mathematics)
Toposes and Local Set Theories An Introduction - Dover Books on Mathematics Author:J. L. Bell 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.