A constructive semantics for non‐deducibility |
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Authors: | Francesco Ciraulo |
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Affiliation: | Dipartimento di Matematica ed Applicazioni, Università degli Studi di Palermo, Via Archirafi, 34‐I‐90123, Palermo, Italy |
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Abstract: | This paper provides a constructive topological semantics for non‐deducibility of a first order intuitionistic formula. Formal topology theory, in particular the recently introduced notion of a binary positivity predicate, and co‐induction are two needful tools. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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Keywords: | Non‐deducibility formal topology binary positivity co‐induction constructive mathematics |
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