Question: Question 4. Consider a function f : A B. Find counterexamples to the following statements: (a) Given subsets W, X A, we have f (W

Question 4. Consider a function f : A B. Find counterexamples to the following statements: (a) Given subsets W, X A, we have f (W X ) = f (W ) f (X ).

(b) Given a subset Y B, we have f(f^1 (Y))=Y.

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