Some kinds of $(\overline{\in },\overline{\in }\vee \overline{q})$-fuzzy filters of $BL$-algebras

Xueling Ma, Jianming Zhan, Wiesław A. Dudek

The concepts of $(\overline{\in },\overline{\in }\vee \overline{q})$-fuzzy (implicative, positive implicative and fantastic) filters of $BL$-algebras are introduced and some related…