1.

5)IfA 11,2,3,43, B 13, 4, 5, 6)C 14, 5, 6,7, 83 and universal setX 1following, 2, 3, 4, 5, 6, 7, 8, 9, 103 verityii) (AUB)y A'nBiv) (An B) A'UB1VV1

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