Rosenfeld's fuzzy subgroups with interval-valued membership functions
Fuzzy Sets and Systems
Fuzzy Sets and Systems
(&egr;, &egr; V q)-fuzzy normal, quasinormal and maximal subgroups
Fuzzy Sets and Systems
Fuzzy Sets and Systems
Fuzzy strong implicative hyper BCK-ideals of hyper BCK-algebras
Information Sciences—Informatics and Computer Science: An International Journal
Toward a generalized theory of uncertainty (GTU): an outline
Information Sciences—Informatics and Computer Science: An International Journal
Pseudo-BCK algebras and PD-posets
Soft Computing - A Fusion of Foundations, Methodologies and Applications
Redefined fuzzy Hv-submodules and many valued implications
Information Sciences: an International Journal
Information Sciences: an International Journal
Redefined fuzzy implicative filters
Information Sciences: an International Journal
Arithmetic operators in interval-valued fuzzy set theory
Information Sciences: an International Journal
Information Sciences: an International Journal
A new view of fuzzy hypernear-rings
Information Sciences: an International Journal
Applications of soft sets in ideal theory of BCK/BCI-algebras
Information Sciences: an International Journal
Relationship between similarity measure and entropy of interval valued fuzzy sets
Fuzzy Sets and Systems
Information Sciences: an International Journal
Generalizations of fuzzy subalgebras in BCK/BCI-algebras
Computers & Mathematics with Applications
On the definition of the intuitionistic fuzzy subgroups
Computers & Mathematics with Applications
Fuzzy hyperrings (Hv-rings) based on fuzzy universal sets
Information Sciences: an International Journal
New types of fuzzy ideals in BCK/BCI-algebras
Computers & Mathematics with Applications
Some kinds of -fuzzy ideals of BCI-algebras
Computers & Mathematics with Applications
Characterizations of regular ordered semigroups in terms of (α,β)-fuzzy generalized bi-ideals
Information Sciences: an International Journal
Ordered semigroups characterized by interval valued ε, ε $\vee$ q-fuzzy bi-ideals
Journal of Intelligent & Fuzzy Systems: Applications in Engineering and Technology
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In this paper, we first introduce the notions of (positive implicative, implicative and commutative) interval-valued fuzzy ideals of BCI-algebras, which are generalizations of (positive implicative, implicative and commutative) fuzzy ideals, respectively, and investigate some of their related properties. The concept of quasi-coincidence of an interval-valued fuzzy point within an interval-valued fuzzy set is introduced. In fact, the concept is a generalized concept of quasi-coincidence of a fuzzy point within a fuzzy set. By using this new idea, we further introduce the notions of (positive implicative, implicative and commutative) (@?,@?@?q)-interval-valued fuzzy ideals of BCI-algebras and investigate some of their related properties. Some characterization theorems of these generalized interval-valued fuzzy ideals are derived. The relationship among these generalized interval-valued fuzzy ideals of BCI-algebras is also considered.