{ "id": "1610.02191", "version": "v1", "published": "2016-10-07T08:53:58.000Z", "updated": "2016-10-07T08:53:58.000Z", "title": "Proof Theory of Constructive Systems: Inductive Types and Univalence", "authors": [ "Michael Rathjen" ], "comment": "28 pages", "categories": [ "math.LO" ], "abstract": "In Feferman's work, explicit mathematics and theories of generalized inductive definitions play a central role. One objective of this article is to describe the connections with Martin-Lof type theory and constructive Zermelo-Fraenkel set theory. Proof theory has contributed to a deeper grasp of the relationship between different frameworks for constructive mathematics. Some of the reductions are known only through ordinal-theoretic characterizations. The paper also addresses the strength of Voevodsky's univalence axiom. A further goal is to investigate the strength of intuitionistic theories of generalized inductive definitions in the framework of intuitionistic explicit mathematics that lie beyond the reach of Martin-Lof type theory.", "revisions": [ { "version": "v1", "updated": "2016-10-07T08:53:58.000Z" } ], "analyses": { "subjects": [ "03F30", "03F50", "03C62" ], "keywords": [ "proof theory", "constructive systems", "inductive types", "martin-lof type theory", "intuitionistic explicit mathematics" ], "note": { "typesetting": "TeX", "pages": 28, "language": "en", "license": "arXiv", "status": "editable" } } }