等价关系与等价类R是A={1,2,3,4,5,6}的等价关系.R={(1,1)(2,2)(3,3)(4,4)(5,5)(6,6)(1,5)(5,1)(2,3)(3,2)(2,6)(6,2)(3,6)(6,3)}求R的等价类
问题描述:
等价关系与等价类
R是A={1,2,3,4,5,6}的等价关系.R={(1,1)(2,2)(3,3)(4,4)(5,5)(6,6)(1,5)(5,1)(2,3)(3,2)(2,6)(6,2)(3,6)(6,3)}
求R的等价类
答
额,上学期学的,现在都忘得差不多啦
答
a与b属于同一个等价类(a,b)∈R.
所以1,5等价,2,3,6等价,4与4等价.
所以等价类是[1]=[5]={1,5},[2]=[3]=[6]={2,3,6},[4]={4}.