Commun. Korean Math. Soc. Published online October 13, 2021
HeeSik Kim, Joseph Neggers, and YoungJoo Seo
Hanyang University; Alabama University; Daejin University
Abstract : We study the notion of a left-almost-zero groupoid, and we generalize two axioms which play important roles in the theory of BCK-algebras using the notion of a projection. Moreover, we investigate a Smarandache disjointness of semi-leftoids.