Abstract
It has been proved by S. C. Kleene and David Nelson that the formulais intuitionistically non-deducible, i.e., non-deducible within the intuitionistic functional calculus.The aim of this note is to outline a general method which permits us to establish the intuitionistic non-deducibility of many formulas and in particular of the formula (1).
Publisher
Cambridge University Press (CUP)
Cited by
33 articles.
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