prov:value
| - ), that is, if their cardinal numbers are equal.Remark:- Equal sets are always equivalent but equivalent sets are not always equal.Example:-if A={1,2,3,4,5}, B={a,b,c,d,e}A and B are equivalent sets because n(A)=n(B)=5, but A and B are not equal sets.Subset:- Let A and B be two sets given in such a way that every element of A is in B, then it is said that A is a subset of B, written asSuperset:-If
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