A Study of Generalized QL ′ -Implications

Dimitrios S. Grammatikopoulos () and Basil Papadopoulos
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Dimitrios S. Grammatikopoulos: Section of Mathematics and Informatics, Department of Civil Engineering, School of Engineering, Democritus University of Thrace, 67100 Kimmeria, Greece
Basil Papadopoulos: Section of Mathematics and Informatics, Department of Civil Engineering, School of Engineering, Democritus University of Thrace, 67100 Kimmeria, Greece

Mathematics, 2022, vol. 10, issue 20, 1-17

Abstract: In this paper, we introduce and study the GQL ′ -operations. We prove that this class is a hyper class of the known class of QL ′ -operations. Similar to QL ′ -operations, GQL ′ -operations are not always fuzzy implications. On the other hand, we present and prove a necessary but not sufficient condition that leads to the generation of a GQL ′ -implication. Our study is completed by studying the satisfaction or the violation of some basic properties of fuzzy implications, such as the left neutrality property, the exchange principle, the identity principle and the left ordering property. Our study also completes the study of the aforementioned basic properties for QL ′ -implications and leads to a new connection between QL-operations and D ′ -operations.

Keywords: fuzzy implication; GQL?-implication; fuzzy negation; t-norm; t-conorm (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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