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Homotopy type theory : univalent foundations of mathematicsBauer, AndrejHomotopy type theory is a new branch of mathematics that combines aspects of several different fields in a surprising way. It is based on a recently discovered connection between homotopy theory and ... type theory. It touches on topics as seemingly distant as the homotopy groups of spheres, the algorithms for type checking, and the definition of weak ▫$\infty$▫-groupoids. Homotopy type theory brings new ideas into the very foundation of mathematics. On the one hand, there is Voevodsky's subtle and beautiful univalence axiom. The univalence axiom implies, in particular, that isomorphic structures can be identified, a principle that mathematicians have been happily using on workdays, despite its incompatibility with the "official" doctrines of conventional foundations. On the other hand, we have higher inductive types, which provide direct, logical descriptions of some of the basic spaces and constructions of homotopy theory: spheres, cylinders, truncations, localizations, etc. Both ideas are impossible to capture directly in classical set-theoretic foundations, but when combined in homotopy type theory, they permit an entirely new kind of "logic of homotopy types". This suggests a new conception of foundations of mathematics, with intrinsic homotopical content, an "invariant" conception of the objects of mathematics - and convenient machine implementations, which can serve as a practical aid tothe working mathematician. This is the Univalent Foundations program. The present book is intended as a first systematic exposition of the basics of univalent foundations, and a collection of examples of this new style of reasoning - but without requiring the reader to know or learn any formal logic, or to use any computer proof assistant. We believe that univalent foundations will eventually become a viable alternative to set theory as the "implicit foundation" for the unformalized mathematics done by most mathematicians.Type of material - scient. monogr.Publication and manufacture - [Princeton (N.J.)] : Univalent Foundations Program, cop. 2013Language - englishCOBISS.SI-ID - 16749657
Author
Bauer, Andrej
Other authors
Univalent Foundations Program
Topics
osnove matematike |
teorija množic |
matematična logika |
teorija tipov |
homotopska teorija |
teorija kategorij |
realna števila |
foundations of mathematics |
set theory |
mathematical logic |
type theory |
homotopy theory |
category theory |
real numbers
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| Bauer, Andrej | 15854 |
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