two sets A and B are equal, in notation A = B, when they consist of the same elements; AB if, and only if, for all z, ze

[answerhappygod]

Two Sets A And B Are Equal In Notation A B When They Consist Of The Same Elements Ab If And Only If For All Z Ze 1 (16.31 KiB) Viewed 47 times

two sets A and B are equal, in notation A = B, when they consist of the same elements; AB if, and only if, for all z, ze A if, and only if, ze B. Prove that AB if and only if ACB and BCA.