We show that all fuzzy congruencerelations on a semigroup is a lattice.
证明了一个半群上所有模糊同余关系作成一个格。
2
Finally, we give the concepts of the product of fuzzy ideals and the product of fuzzy congruencerelations. Some properties of them are discussed.
最后,给出模糊理想的积和模糊同余关系的积的概念,讨论了它们的一些性质。
3
Based on the atoms and congruencerelations of approximation algebra, it is proved that rough set algebra becomes pseudo-complemented ms algebra if proper complement operators are selected.