Can some please explain to me how to solve these two questions?(adsbygoogle = window.adsbygoogle || []).push({});

Let A, B and C be any sets, prove that:

(a) A-B ⊂ A

(b) (A∩B) complement = A complement ∪ B and (A∪B) complement = A complement∩ B complement.

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# I Set Theory

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