Unformatted text preview: B . (ii) f ( X ∪ X ) = f ( X ) ∪ f ( X ). (iii) f ( X ∩ X ) ⊆ f ( X ) ∩ f ( X ). Show by example that equality need not hold. (iv) f ( XX ) ⊇ f ( X )f ( X ). Show by example that equality need not hold....
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 Spring '08
 ctw
 Math, Sets, Following, Empty set, arbitrary function, arbitrary subsets

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