Shahrood University of TechnologyJournal of Algebraic Systems2345-51287220200101P-CLOSURE IN PSEUDO BCI-ALGEBRAS155165158610.22044/jas.2019.6332.1315ENH.HarizaviDepartment of Mathematics, Shahid Chamran University of Ahvaz, Ahvaz, Iran.Journal Article20171020In this paper, for any non-empty subset C of a pseudo<br /> BCI-algebra X, the concept of p-closure of C, denoted by C(pc), is<br /> introduced and some related properties are investigated. Applying<br /> this concept, a characterization of the minimal elements of X is<br /> given. It is proved that C(pc) is the least closed pseudo BCI-ideal of X<br /> containing C and K(X) for any ideal C of X. Finally, by using the<br /> concept of p-closure, a closure operator is introduced.http://jas.shahroodut.ac.ir/article_1586_994b806d9cbd425ae6e15391715c3f04.pdf