In this paper we study the fuzzy kernel-trace of the fuzzy congruence relation on some class semigroup,that is,the notions of fuzzy kernel and fuzzy trace of a fuzzy congruence relation on a completely regular semigroup;we establish these notions by introducing fuzzy congruence pairs.

Recently, many researches focused on influential factors, discrimination of the critical items from the study items, nerve mechanisms and theory interpretations of relatedness effects, And fuzzy-trace theory is the one arousecd much attention.

Explicit 5 accuracy-oriented memory theories: schema reconstruct theory, fuzzy-trace memory theory, source monitoring framework, attributional approach theory, constructive memory framework, and give a short comment.