Title
On n-contractive fuzzy logics
Abstract
It is well known that MTL satisfies the finite embeddability property. Thus MTL is complete w.r.t. the class of all finite MTL-chains. In order to reach a deeper understanding of the structure of this class, we consider the extensions of MTL by adding the generalized contraction since each finite MTL-chain satisfies a form of this generalized contraction. Simultaneously, we also consider extensions of MTL by the generalized excluded middle laws introduced in [9] and the axiom of weak cancellation defined in [31]. The algebraic counterpart of these logics is studied characterizing the subdirectly irreducible, the semisimple, and the simple algebras. Finally, some important algebraic and logical properties of the considered logics are discussed: local finiteness, finite embeddability property, finite model property, decidability, and standard completeness. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Year
DOI
Venue
2007
10.1002/malq.200610044
MATHEMATICAL LOGIC QUARTERLY
Keywords
Field
DocType
algebraic logic,fuzzy logics,generalized contraction,generalized excluded middle,left-continuous t-norms,MTL-algebras,non-classical logics,residuated lattices,standard completeness,substructural logics,varieties,weak cancellation
Discrete mathematics,Locally finite collection,Algebraic number,Finite model property,Algebra,Axiom,Fuzzy logic,Algebraic logic,Decidability,Completeness (statistics),Mathematics
Journal
Volume
Issue
ISSN
53
3
0942-5616
Citations 
PageRank 
References 
19
1.00
18
Authors
3
Name
Order
Citations
PageRank
Rostislav Horcík1506.41
Carles Noguera246233.93
Milan Petrik3191.34