bwheeler76771 bwheeler76771

13-12-2022
Mathematics

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Let f be a function from the set A to the set B. Let S and T be subsets of A. Show that a) f (S ∪ T) = f (S) ∪ f (T). b) f (S ∩ T) ⊆ f (S) ∩ f (T).

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