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Type: Artigo de periódico
Title: Fibring logics with topos semantics
Author: Coniglio, ME
Sernadas, AC
Sernadas, CS
Abstract: The concept of fibring is extended to higher-order logics with arbitrary modalities and binding operators. A general completeness theorem is established for such logics including HOL and with the meta-theorem of deduction. As a corollary, completeness is shown to be preserved when fibring such rich logics. This result is extended to weaker logics in the cases where fibring preserves conservativeness of HOL-enrichments. Soundness is shown to be preserved by fibring without any further assumptions.
Subject: modal higher-order logic
categorical logic
conservative extensions
Country: Inglaterra
Editor: Oxford Univ Press
Citation: Journal Of Logic And Computation. Oxford Univ Press, v. 13, n. 4, n. 595, n. 624, 2003.
Rights: fechado
Identifier DOI: 10.1093/logcom/13.4.595
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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