The notions of fuzzy 1-type (2-type) positive implicative filter and fuzzy normal filter of
pseudo-BCK algebras are introduced, some properties and equivalent conditions are given …

We study the properties and relations of fuzzy pseudo-filters of pseudo-BCK algebras. After
we discuss the equivalent conditions of fuzzy normal pseudo-filter of pseudo-BCK algebra …

As a generalization of positive implicative BCK/BCI-algebras, the notions of 1-type positive
implicative pseudo-BCK/BCI algebras are introduced, and some properties are investigated …

Some new properties of fuzzy associative filters (also known as fuzzy associative pseudo‐
filters), fuzzy p‐filter (also known as fuzzy pseudo‐p‐filters), and fuzzy a‐filter (also known as …

In this paper, we discuss chain conditions of fuzzy positive implicative filters of BL-algebras.
Specially, by using the notions of maximal and normal fuzzy positive implicative filters, we …

Three open problems on pseudo-filters (ideals) of pseudo-BCK algebras, posed by YB Jun,
M. Kondo and KH Kim [Pseudo-ideals of pseudo-BCK algebras, Scientiae Mathematicae …

The aim of this paper is to introduce the notions of fuzzy Boolean filters and fuzzy positive
implicative filters in BL-algebras and to investigate their properties. Several …

The notions of fuzzy anti-grouped filter and fuzzy normal filter in pseudo-BCI algebra are
introduced, some properties and equivalent conditions are presented. A counterexample is …

The aim of this paper is to introduce the notion of (∈,∈∨ q)-fuzzy (implicative, MV− and G−)
filters of pseudo− BL algebras and to investigate some of their related properties. Some …

A new notion of fuzzy T-type filter in pseudo-BCI algebra is introduced, some properties and
equivalent conditions are presented. The relationship among fuzzy T-type filters, fuzzy q …