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The intuitionistic fragment of computability logic at the propositional level

Giorgi Japaridze
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Abstract

This paper presents a soundness and completeness proof for propositional intuitionistic calculus with respect to the semantics of computability logic. The latter interprets formulas as interactive computational problems, formalized as games between a machine and its environment. Intuitionistic implication is understood as algorithmic reduction in the weakest possible -- and hence most natural -- sense, disjunction and conjunction as deterministic-choice combinations of problems (disjunction = machine's choice, conjunction = environment's choice), and "absurd" as a computational problem of universal strength. See http://www.cis.upenn.edu/~giorgi/cl.html for a comprehensive online source on computability logic.

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Giorgi Japaridze. 2006-02-05. The intuitionistic fragment of computability logic at the propositional level. https://doi.org/10.1016/j.apal.2007.05.001

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