Elsevier

Fuzzy Sets and Systems

Volume 159, Issue 22, 16 November 2008, Pages 3014-3032
Fuzzy Sets and Systems

Type-2 implications on non-interactive fuzzy truth values

https://doi.org/10.1016/j.fss.2008.01.017Get rights and content

Abstract

In this paper we consider algebras of fuzzy truth values equipped with an implication operation. Generalizing the definition of type-1 fuzzy implications, we discuss extended fuzzy S-implications and coimplications and also extended residual implications and coimplications, in particular to the extended residual of minimum. We study the algebraic properties of these operations and their relationships to extended t-norms and t-conorms in particular to meet and join. These investigations are intended to provide a theoretical background for type-2 approximate reasoning applications.

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