05210nam 2200601 450 991048288490332120230120001956.01-4832-9921-X(CKB)3710000000201461(EBL)1888654(SSID)ssj0001267424(PQKBManifestationID)11723284(PQKBTitleCode)TC0001267424(PQKBWorkID)11255587(PQKB)10649503(MiAaPQ)EBC1888654(EXLCZ)99371000000020146120150112h19841984 uy 0engur|n|---|||||txtccrTopoi the categorial analysis of logic /Robert Goldblatt2nd ed.Amsterdam, Netherlands ;New York, New York :North-Holland,1984.©19841 online resource (569 p.)Studies in Logic and the Foundations of Mathematics ;Volume 98Description based upon print version of record.1-322-47986-0 0-444-86711-2 Includes bibliographical references and index.Front Cover; Topoi: The Categorial Analysis of Logic; Copyright Page; Dedication; PREFACE; PREFACE TO SECOND EDITION; Table of Contents; PROSPECTUS; CHAPTER 1. MATHEMATICS = SET THEORY?; 1. Set theory; 2. Foundations of mathematics; 3. Mathematics as set theory; CHAPTER 2. WHAT CATEGORIES ARE; 1. Functions are sets?; 2. Composition of functions; 3. Categories: first examples; 4. The pathology of abstraction; 5. Basic examples; CHAPTER 3. ARROWS INSTEAD OF EPSILON; 1. Monic arrows; 2. Epic arrows; 3. Iso arrows; 4. Isomorphic objects; 5. Initial objects; 6. Terminal objects; 7. Duality8. Products9. Co-products; 10. Equalisers; 11. Limits and co-limits; 12. Co-equalisers; 13. Thepullback; 14. Pushouts; 15. Completeness; 16. Exponentiation; CHAPTER 4. INTRODUCING TOPOI; 1. Subobjects; 2. Classifying subobjects; 3. Definition of topos; 4. First examples; 5. Bundles and sheaves; 6. Monoid actions; 7. Power objects; 8. Ωand comprehension; CHAPTER 5. TOPOS STRUCTURE: FIRST STEPS; 1. Monies equalise; 2. Images of arrows; 3. Fundamental facts; 4. Extensionality and bivalence; 5. Monies and epics by elements; CHAPTER 6. LOGIC CLASSICALLY CONCEIVED; 1. Motivating topos logic2. Propositions and truth-values3. The prepositional calculus; 4. Boolean algebra; 5. Algebraic semantics; 6. Truth-functions as arrows; 7.E-semantics; CHAPTER 7. ALGEBRA OF SUBOBJECTS; 1. Complement, intersection, union; 2. Sub(d) as a lattice; 3. Boolean topoi; 4. Internal vs. external; 5. Implication and its implications; 6. Filling two gaps; 7. Extensionality revisited; CHAPTER 8. INTUITIONISM AND ITS LOGIC; 1. Constructivist philosophy; 2. Heyting's calculus; 3. Heyting algebras; 4. Kripke semantics; CHAPTER 9. FUNCTORS; 1. The concept of functor; 2. Natural transformations3. Functor categoriesCHAPTER 10. SET CONCEPTS AND VALIDITY; 1. Set concepts; 2. Heyting algebras in P; 3. The subobject classifier inSetp; 4. The truth arrows; 5. Validity; 6. Applications; CHAPTER 11. ELEMENTARY TRUTH; 1. The idea of a first-orderlanguage; 2. Formal language andsemantics; 3. Axiomatics; 4. Models in a topos; 5. Substitution and soundness; 6. Kripke models; 7. Completeness; 8. Existence and free logic; 9. Heyting-valued sets; 10. High-order logic; CHAPTER 12. CATEGORIAL SET THEORY; 1. Axioms of choice; 2. Natural numbers objects; 3. Formal set theory; 4. Transitive sets5. Set-objects6. Equivalence of models; CHAPTER 13. ARITHMETIC; 1. Topoi as foundations; 2. Primitive recursion; 3. Peano postulates; CHAPTER 14. LOCAL TRUTH; 1. Stacks and sheaves; 2. Classifying stacks and sheaves; 3. Grothendiecktopoi; 4. Elementary sites; 5. Geometric modality; 6. Kripke-Joyalsemantics; 7. Sheaves as completeΩ-sets; 8. Number systems as sheaves; CHAPTER 15. ADJOINTNESS AND QUANTIFIERS; 1. Adjunctions; 2. Some adjoint situations; 3. The fundamental theorem; 4. Quantifiers; CHAPTER 16. LOGICAL GEOMETRY; 1. Preservation and reflection; 2. Geometric morphisms3. Internal logicThe first of its kind, this book presents a widely accessible exposition of topos theory, aimed at the philosopher-logician as well as the mathematician. It is suitable for individual study or use in class at the graduate level (it includes 500 exercises). It begins with a fully motivated introduction to category theory itself, moving always from the particular example to the abstract concept. It then introduces the notion of elementary topos, with a wide range of examples and goes on to develop its theory in depth, and to elicit in detail its relationship to Kripke's intuitionistic semantics,Studies in logic and the foundations of mathematics ;Volume 98.ToposesToposes.512.55512/.55Goldblatt Robert47246MiAaPQMiAaPQMiAaPQBOOK9910482884903321Topoi2250701UNINA