Question: Prove De Morgans laws (Theorem 1.4.9). In theorem For every two sets A and B, (A B)c = Ac Bc and (A

Prove De Morgan’s laws (Theorem 1.4.9).
In theorem
For every two sets A and B,
(A ∪ B)c = Ac ∩ Bc and (A ∩ B)c = Ac ∪ Bc.

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