A semantics of evidence for classical arithmetic
Journal of Symbolic Logic
Mathematics based on incremental learning: excluded middle and inductive inference
Theoretical Computer Science - Algorithmic learning theory(ALT 2002)
Can Proofs be Animated by Games?
Fundamenta Informaticae - Typed Lambda Calculi and Applications 2005, Selected Papers
Interactive Learning-Based Realizability Interpretation for Heyting Arithmetic with EM1
TLCA '09 Proceedings of the 9th International Conference on Typed Lambda Calculi and Applications
Can proofs be animated by games?
TLCA'05 Proceedings of the 7th international conference on Typed Lambda Calculi and Applications
Interactive Realizers: A New Approach to Program Extraction from Nonconstructive Proofs
ACM Transactions on Computational Logic (TOCL)
Can Proofs be Animated by Games?
Fundamenta Informaticae - Typed Lambda Calculi and Applications 2005, Selected Papers
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We define a constructive model for ${\Delta^0_2}$-maps, that is, maps recursively definable from a map deciding the halting problem. Our model refines an existing constructive interpretation for classical reasoning over one-quantifier formulas: it is compositional (Modus Ponens is interpreted as an application) and semantical (rather than translating classical proofs into intuitionistic ones, we define a mathematical structure intuitionistically validating excluded middle for one-quantifier formulas).