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An Algorithm for Producing Fuzzy Negations via Conical Sections [PDF]

open access: yesAlgorithms, 2019
In this paper we introduced a new class of strong negations, which were generated via conical sections. This paper focuses on the fact that simple mathematical and computational processes generate new strong fuzzy negations, through purely geometrical ...
Georgios Souliotis, Basil Papadopoulos
doaj   +4 more sources

Interval-valued contractive fuzzy negations [PDF]

open access: yesInternational Conference on Fuzzy Systems, 2010
In this work we consider the concept of contractive interval-valued fuzzy negation, as a negation such that it does not increase the length or amplitude of an interval. We relate this to the concept of Lipschitz function. In particular, we prove that the
Humberto Bustince   +9 more
core   +3 more sources

Innovative Methods of Constructing Strict and Strong Fuzzy Negations, Fuzzy Implications and New Classes of Copulas

open access: yesMathematics
This paper presents new classes of strong fuzzy negations, fuzzy implications and Copulas. It begins by presenting two theorems with function classes involving the construction of strong fuzzy negations.
Panagiotis Georgiou Mangenakis   +1 more
doaj   +2 more sources

Intuitionistic Type-2 Fuzzy Normed Linear Space and Some of Its Basic Properties

open access: yesMathematics
An intuitionistic fuzzy set is a more generalised tool than a fuzzy set for handling unpredictability as, in an intuitionistic fuzzy set, there is scope for considering a grade of non-membership, independent of the grade of membership, only satisfying ...
Amit Biswas   +2 more
doaj   +2 more sources

General negations in fuzzy set theory

open access: yesJournal of Mathematical Analysis and Applications, 1983
All possible negation operations which are optimal in some precise sense are fully described.
Ovchinnikov, S.V
core   +2 more sources

A Comprehensive Study on the Different Approaches of the Symmetric Difference in Nilpotent Fuzzy Systems

open access: yesMathematics
This paper comprehensively examines symmetric difference operators within logical systems generated by nilpotent t-norms and t-conorms, specifically addressing their behavior and applicability in bounded and Łukasiewicz fuzzy logic systems.
Luca Sára Pusztaházi   +2 more
doaj   +2 more sources

Research on intuitionistic fuzzy negations [PDF]

open access: yesNotes on Intuitionistic Fuzzy Sets, 2021
In the theories of intuitionistic fuzzy sets and intuitionistic fuzzy logics, there are 54 different negations. Here, we check the relationship between every two of them.
Nora Angelova, Krassimir Atanassov
openaire   +1 more source

Generator of Fuzzy Implications

open access: yesAlgorithms, 2023
In this research paper, a generator of fuzzy methods based on theorems and axioms of fuzzy logic is derived, analyzed and applied. The family presented generates fuzzy implications according to the value of a selected parameter.
Athina Daniilidou   +3 more
doaj   +1 more source

On Fuzzy Negations and Laws of Contraposition. Lattice of Fuzzy Negations

open access: yesFormalized Mathematics, 2023
Summary This the next article in the series formalizing the book of Baczyński and Jayaram “Fuzzy Implications”. We define the laws of contraposition connected with various fuzzy negations, and in order to make the cluster registration mechanism fully working, we construct some more non-classical examples of fuzzy implications. Finally,
openaire   +3 more sources

The Law of Excluded Middle and the Negation of it in many-valued and Fuzzy Logics [PDF]

open access: yesحکمت و فلسفه, 2008
The philosophical critiques, in twentieth century, on binary paradigm caused the negation of the law of excluded middle as the same as it caused the establishment of many-valued logics and fuzzy logic, while the laws of excluded middle, identity and ...
morteza haj hoseyni
doaj   +1 more source

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