The Property of Hierarchy Internal P-sets
Xie Wei-qi, Xiaoxin Li · Shuxue de shijian yu renshi · 2012
P-sets are a set pair which are composed of internal P-setsX~(?)and outer PsetsX~F, or(X~(?),X~F) is P-sets.By using P-sets,the expansion of the P-sets model—the hierarchy internal P-sets ware given,extend the dependency the hierarchy internal P-sets and study the property of the nature of the P-sets.The hierarchy internal P-sets is the dependency of common internal P-sets t,which provide ways to analysis and research the problem from multi-angle,multi-level.