By using a set □, we introduce the concept of □-fuzzy subsemigroups and study some of it’s properties. Also, we show that the homomorphic images and preimages of □-fuzzy subsemigroups become □-fuzzy subsemigroups.
1. Introduction 2. Preliminaries 3. Ω-interval-valued fuzzy subsemigroups 4. Properties under a homomorphism Acknowledgments References