集合的ρ-完备性及有效点的存在性

THE ρ COMPLETENESS OF SET AND THE EXISTENCE OF EFFICIENT POINT

建立了集合上的偏好及偏好诱导集等概念，给出了判别ρ－完备集的一系列条件，并指出ρ－完备集是十分广泛的集类，另外得到了集合的有效点存在性定理．

This paper sets up the concepts of preference on set and the set induced by a preference. A series of conditions distinguishing ρ complete set is given, and it is indicated that ρ complete set is very extensively a family of sets. The existence theorems of the efficient point of set are gotten.