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For any 3 sets A, B and C, prove that : ...

For any 3 sets A, B and C, prove that :
(i) `A-(B cupC)=(A-B)cap(A-C)`
(ii) `A-(BcapC)=(A-B)cup(A-C)`
(iii) `A cap(B-C)= (A cap B) - (A cap C)`
(iv) `(A cupB)-C=(A-C)cup(B-C)`
(v) `A cap (B DeltaC)=(A capB)Delta(A capC)`.

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