The finite model property for the variety of Heyting algebras with successor

The finite model property of the variety of S-algebras was proved by X. Caicedo using Kripke model techniques of the associated calculus. A more algebraic proof, but still strongly based on Kripke model ideas, was given by Muravitskii. In this article we give a purely algebraic proof for the finite...

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Detalles Bibliográficos
Autores principales: Castiglioni, José Luis, San Martín, Hernán Javier
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/95933
https://ri.conicet.gov.ar/11336/9200
http://inmabb.criba.edu.ar/revuma/revuma.php?p=toc/vol53
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Sumario:The finite model property of the variety of S-algebras was proved by X. Caicedo using Kripke model techniques of the associated calculus. A more algebraic proof, but still strongly based on Kripke model ideas, was given by Muravitskii. In this article we give a purely algebraic proof for the finite model property which is strongly based on the fact that for every element x in a S-algebra the interval [x, S(x)] is a Boolean lattice.