A new trend to pseudo-BCK algebras
Akbar Rezaei · 2018
The aim of this paper is to drive pseudo-BCK algebras from directoids and vice versa. We generalize some results proved by Ivan Chajda et al. for the case of BCK-algebras. We assign to an arbitrary pseudo-BCK algebra a semilattice-like structure and observe that this is the point where directoids are different from the semilattice-like structures.