FUZZY ε-SUBALGEBRAS (IDEALS) IN BCI-ALGEBRAS

Based on a sub-BCK-algebra K of a BCI-algebra X, the notions of fuzzy (K, ε)-subalgebras, fuzzy (K, ε)-idealsand fuzzy commutative (K, ε)-ideals are introduced, and their relations/propertiesare investigated. Conditions for a fuzzy subalgebra/ideal to be a fuzzy (K, ε)-subalgebra/ideal are provided.

1. Introduction

2. Preliminaries

3. Fuzzy ε-subalgebras

4. Fuzzy (commutative) ε-ideals

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