Source: J. Symbolic Logic Volume 72, Issue 1
(2007), 243-276.
The paper gives a soundness and completeness proof for the implicative fragment of intuitionistic
calculus with respect to the semantics of computability logic, which understands intuitionistic
implication as interactive algorithmic reduction. This concept — more precisely, the associated
concept of reducibility — is a generalization of Turing reducibility from the traditional,
input/output sorts of problems to computational tasks of arbitrary degrees of interactivity.
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