This paper brings forward the concept of category on probabilistic metric Spaces and proves that complete probabilistic metric Spaces is a set of the second category.
本文提出了概率度量空间纲的概念，并证明了完备的概率度量空间是概率第二纲集合。
III. Under the top-level domain name "CN", two kinds of English second-level domain names of "category domain name" and "administrative area domain name" are set up.
顶级域名cn之下，设置“类别域名”和“行政区域名”两类英文二级域名。
The second part is about category of Consensus Set.
第二部分研究的是合意集的范畴。
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