On elementary equivalence in fuzzy predicate logics

Our work is a contribution to the model theory of fuzzy predicate logics. In this paper we characterize elementary equivalence between models of fuzzy predicate logic using elementary mappings. Refining the method of diagrams we give a solution to an open problem of Hájek and Cintula (J Symb Log 71(...

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Detalles Bibliográficos
Autores: Dellunde i Clavé, Pilar|||0000-0002-8198-5475, Esteva Massaguer, Francesc
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:153512
Acceso en línea:https://ddd.uab.cat/record/153512
https://dx.doi.org/urn:doi:10.1007/978-3-642-14049-5_76
Access Level:acceso abierto
Palabra clave:Mathematical logic and foundations
Model theory
Fuzzy predicate logics
Elementary extensions
Witnessed models
Quasi-witnessed models
Descripción
Sumario:Our work is a contribution to the model theory of fuzzy predicate logics. In this paper we characterize elementary equivalence between models of fuzzy predicate logic using elementary mappings. Refining the method of diagrams we give a solution to an open problem of Hájek and Cintula (J Symb Log 71(3):863-880, 2006, Conjectures 1 and 2). We investigate also the properties of elementary extensions in witnessed and quasi-witnessed theories, generalizing some results of Section 7 of Hájek and Cintula (J Symb Log 71(3):863-880, 2006) and of Section 4 of Cerami and Esteva (Arch Math Log 50(5/6):625-641, 2011) to non-exhaustive models