Suppose A1, A2,... An are sets in some universal set U, and n ≥ 2. Prove that(A1 ∪ A2 ∪··· ∪ An)` = (A1)` ∩ (A2)` ∩··· ∩ (An)` I used the ` to represent the set complement(s). Thank you.

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