Proofs and computations:

Driven by the question, 'What is the computational content of a (formal) proof?', this book studies fundamental interactions between proof theory and computability. It provides a unique self-contained text for advanced students and researchers in mathematical logic and computer science. Pa...

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Beteilige Person: Schwichtenberg, Helmut 1942-
Weitere beteiligte Personen: Wainer, S. S.
Format: E-Book
Sprache:Englisch
Veröffentlicht: Cambridge Cambridge University Press 2012
Schriftenreihe:Perspectives in logic
Links:https://doi.org/10.1017/CBO9781139031905
Zusammenfassung:Driven by the question, 'What is the computational content of a (formal) proof?', this book studies fundamental interactions between proof theory and computability. It provides a unique self-contained text for advanced students and researchers in mathematical logic and computer science. Part I covers basic proof theory, computability and Gödel's theorems. Part II studies and classifies provable recursion in classical systems, from fragments of Peano arithmetic up to Π11-CA0. Ordinal analysis and the (Schwichtenberg-Wainer) subrecursive hierarchies play a central role and are used in proving the 'modified finite Ramsey' and 'extended Kruskal' independence results for PA and Π11-CA0. Part III develops the theoretical underpinnings of the first author's proof assistant MINLOG. Three chapters cover higher-type computability via information systems, a constructive theory TCF of computable functionals, realizability, Dialectica interpretation, computationally significant quantifiers and connectives and polytime complexity in a two-sorted, higher-type arithmetic with linear logic.
Umfang:1 Online-Ressource (xiii, 465 Seiten)
ISBN:9781139031905