在此基础上，给出了适当半群上模糊好同余的性质。
On this base, some properties of fuzzy good congruences on adequate semigroups are given.
设s是有向序半群，本文给出了S上的一类正则同余，称为强序同余的定义及性质。
In this paper, the notation of a strongly ordered congruence on an ordered semigroup s is introduced.
本文引入了半环的星元素、星理想、星同余等概念，得到了半环的星同余的一些重要性质。
In this paper, the concepts of star element, star ideals and star congruences of a semiring are introduced.
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