No-counterexample interpretation et sp\'ecification des th\'eor\`emes de l'arithm\'etique
Abstract
This paper presents two different ways of extracting the computational content of formal proofs in arithmetic. The first one corresponds to Kreisel's No-counterexample Interpretation. based on Ackermann consistency proof. We show the link with recent work by Krivine on classical realizability. Finally, we discuss the various degrees of modularity of both approaches.
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