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Posted: **Thu Jun 30, 2022 9:34 pm**

: 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 49 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.