作者vartholomew (尚)
看板Grad-ProbAsk
标题[理工] [离散]-元智94-资工所
时间Mon Nov 9 18:43:28 2009
原试题
http://web2.yzu.edu.tw/library/collections/exam/94G/G94C0134.htm
第一题的d选项
老师给我们的题目是
Let R be a relation on set A . Show that if R is reflexive and
transitive,then R^n = R for all positive integer
麻烦高手解题
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