摘要
定义了集类的ｗ类的概念，给出了ｗ类的单调类定理．
The notion of w class concerning subsets of a set is defined and a monotone class theorem relating to w classes is established.
出处
《西北师范大学学报（自然科学版）》
CAS
1998年第4期20-21,共2页
Journal of Northwest Normal University(Natural Science)
关键词
集类
ω类
单调类定理
Σ域
λ类
class of sets w class monotone class theorem
