集合代数 meaning in English

set algebra
the algebra of sets

3 . the concepts of o - ideal was proposed and its property was discussed . ultra - filter on a set s of lattice implication algebra was defined and was compared with the ultra - filter on a set of lattice , the relationship between this two ultra - filter was studied
3 、给出了格蕴涵代数中o -理想的定义并讨论了其性质，给出了格蕴涵代数中集合s上超滤子的定义并与集合代数上的超滤子作了比较，研究了两种超滤子之间的关系。