necessity measure

Thus, there are three kinds of measure in fuzzy mathematics: possibility measure, necessity measure, credibility measure.

这样，在模糊数学中有三类测度：可能性测度、必要性测度、可信性测度。

This paper deals with some properties of possibility measure, necessity measure, credibility measure for containment, union, intersection, difference, complementation of sets in possibility space.

文章给出了可能性空间中子集的包含、并、交、差、余关于可能性测度、必要性测度和信任性测度的一些性质。

Analyses the necessity of establishing and perfecting inside control system, puts forward concrete measure of improving inside control system to raise management level.

分析了建立健全内部控制制度的必要性，提出了完善内控制度和提高管理水平的具体措施。