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S-Implications on Complete Lattices and the Interval Constructor

open access: yesTrends in Computational and Applied Mathematics, 2008
The aim of this work is to present an approach of interval fuzzy logic based on complete lattices. In particular, we study the extensions of the notions of t-conorms, fuzzy negations and S-implication, from the unit interval to arbitrary complete ...
R.H.S. Reiser   +4 more
doaj   +1 more source

Formal Introduction to Fuzzy Implications [PDF]

open access: yesFormalized Mathematics, 2017
Summary In the article we present in the Mizar system the catalogue of nine basic fuzzy implications, used especially in the theory of fuzzy sets. This work is a continuation of the development of fuzzy sets in Mizar; it could be used to give a variety of more general operations, and also it could be a good starting point towards the ...
openaire   +1 more source

Fundamental Properties of Fuzzy Implications [PDF]

open access: yesFormalized Mathematics, 2018
Summary In the article we continue in the Mizar system [8], [2] the formalization of fuzzy implications according to the monograph of Baczyński and Jayaram “Fuzzy Implications” [1]. We develop a framework of Mizar attributes allowing us for a smooth proving of basic properties of these fuzzy connectives [9].
openaire   +2 more sources

Some Properties of the Extended Threshold Generated Implications

open access: yesFuzzy Information and Engineering
Fuzzy implications play an important role in both approximating reasoning and fuzzy control, and there are many generation methods for fuzzy implications for various applications. The extended threshold generation method for fuzzy implications can induce
Zhi-Hong Yi, Li-Juan Yao, Feng Qin
doaj   +1 more source

Fuzzy implications and inference processes

open access: yesIEEE 3rd International Conference on Computational Cybernetics, 2005. ICCC 2005., 2006
We define fuzzy implications in general, then study their families defined from t-norms, t-conorms and strong negations. Connections between such implications and negations are established. Some basic results are presented concerning the contrapositive symmetry property. The study gives birth to a new class of t-norms.
József Tick, János Fodor
openaire   +2 more sources

Fuzzy inequational logic [PDF]

open access: yes, 2015
We present a logic for reasoning about graded inequalities which generalizes the ordinary inequational logic used in universal algebra. The logic deals with atomic predicate formulas of the form of inequalities between terms and formalizes their semantic
Vychodil, Vilem
core   +1 more source

INTUITIONISTIC FUZZY BI-IMPLICATOR AND PROPERTIES OF LUKASIEWICZ INTUITIONISTIC FUZZY BI-IMPLICATOR

open access: yesTWMS Journal of Applied and Engineering Mathematics, 2019
This paper presents axiomatic as well as constructive definitions of intuitionistic fuzzy bi-implicators based on intuitionistic fuzzy t-norms and their intuitionistic fuzzy residual implicators. The inter-relationship among different proposed classes is presented along with a detailed study of the properties of one of these intuitionistic fuzzy bi ...
ASHRAF, S., QAYYUM, M., KERR, E. E.
openaire   +4 more sources

A Systematic Study on Distributivity of Threshold-Generated Implications over Uninorms

open access: yesAxioms
The distributivity of implications over fuzzy operators is a desirable property for fuzzy systems and can be employed in the elimination of the explosion of if–then rules.
Zhihong Yi
doaj   +1 more source

On fuzzy reasoning schemes [PDF]

open access: yes, 1999
In this work we provide a short survey of the most frequently used fuzzy reasoning schemes. The paper is organized as follows: in the first section we introduce the basic notations and definitions needed for fuzzy inference systems; in the second ...
Fullér, Róbert
core   +2 more sources

ON FUZZY IMPLICATIVE FILTERS OF LATTICE IMPLICATION ALGEBRAS

open access: yesCommunications of the Korean Mathematical Society, 2003
Summary: We investigate some related properties of fuzzy filters and fuzzy implicative filters in lattice implication algebras. We find a characterization of fuzzy filters and fuzzy implicative filters, and we discuss a relation between fuzzy filters and fuzzy implicative filters in lattice implication algebras.
Zhu, Yiquan, Zhang, Qun, Roh, Eun Hwan
openaire   +2 more sources

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