On Game Semantics of the Affine and Intuitionistic Logics

  • Authors:
  • Ilya Mezhirov;Nikolay Vereshchagin

  • Affiliations:
  • The German Research Center for Artificial Intelligence, TU Kaiserslautern,;Lomonosov Moscow State University, Leninskie Gory, 119991

  • Venue:
  • WoLLIC '08 Proceedings of the 15th international workshop on Logic, Language, Information and Computation
  • Year:
  • 2008

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Abstract

We show that the uniform validity is equivalent to the non-uniform validity for both Blass' semantics of [1] and Japaridze's semantics of [5] (thus proving a conjecture from [5]). We present a shorter proof (than that of [10]) of the completeness of the positive fragment of intuitionistic logic for both these semantics. Finally, we show that validity for the "parallel recurrence" version of Japaridze's semantics of [5] is equivalent to accomplishability in the sense of [4].