Soft p p -ideals of soft BCI-algebras
Molodtsov [D. Molodtsov, Soft set theoryFirst results, Comput. Math. Appl. 37 (1999) 1931] introduced the concept of soft set as a new mathematical tool for dealing with uncertainties that is free from the difficulties that have troubled the usual theoretical approaches. Jun [Y. B. Jun, Soft BCK/BCI-algebras, Comput. Math. Appl. 56 (2008) 14081413] applied first the notion of soft sets by Molodtsov to the theory of BCK/BCI-algebras. In this paper we introduce the notion of soft p p -ideals and p p -idealistic soft BCI-algebras, and then investigate their basic properties. Using soft sets, we give characterizations of (fuzzy) p p -ideals in BCI-algebras. We provide relations between fuzzy p p -ideals and p p -idealistic soft BCI-algebras.
soft set (p p -idealistic) soft bci-algebra p p p p p soft ideal soft p p -ideal p p p p p