Decidability in Intuitionistic Type Theo
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Silvio Valentini
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Article
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1996
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John Wiley and Sons
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English
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## Abstract In this paper we show that the usual intuitionistic characterization of the decidability of the propositional function __B(x) prop__ [__x : A__], i. e. to require that the predicate (โ__x__ โ __A__) (__B(x)__ โจ ยฌ __B(x)__) is provable, is equivalent, when working within the framework of