著者
Toshiyasu ARAI
出版者
Japan Association for Philosophy of Science
雑誌
Annals of the Japan Association for Philosophy of Science (ISSN:04530691)
巻号頁・発行日
vol.27, pp.45-60, 2018 (Released:2018-11-01)
参考文献数
19

In this paper we propose a semantics in which the truth value of a formula is a pair of elements in a complete Boolean algebra. Through the semantics we can unify largely two proofs of cut-eliminability (Hauptsatz) in classical second order logic calculus, one is due to Takahashi-Prawitz and the other by Maehara.
著者
Toshiyasu ARAI
出版者
Japan Association for Philosophy of Science
雑誌
Annals of the Japan Association for Philosophy of Science (ISSN:04530691)
巻号頁・発行日
vol.20, pp.29-47, 2012-03-25 (Released:2017-08-01)
参考文献数
39
被引用文献数
1

This article is a sneak preview of the project, 'proof theory for theories of ordinals'. Background, aims and survey on the project are given.