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Consider subsets A, B ⊆ X and C ⊆ Y . Prove the following equality. (Argue...

Consider subsets A, B ⊆ X and C ⊆ Y . Prove the following equality. (Argue straight from the definitions – don’t use any results.) (A ∪ B) × C = (A × C) ∪ (B × C)

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