Through these studies, the study of rough set's algebraic properties are spreaded to right involution groupoid.

这些结果将粗糙集代数性质的研究扩展到右对合广群这个代数系统中。

Starting with a subset s of a juxtaposed groupoid one may generate the smallest juxtaposed subgroupoid containing s by applying the compositions over and over again.

从这个集的子集s出发，利用二元合成可以生成一个包含s的最小并立子群胚。

The notions of fuzzy prime relations, fuzzy strongly(weakly) prime relations on a groupoid S are introduced, and their fundamental properties and relations are discussed.

在广群中引入了模糊素关系、模糊强素关系及模糊弱素关系的概念， 讨论了它们之间的关系及其基本性质。