Question: 5. Given a function f: S - T and sets A, B c S, prove the following: a) f(AnB) cf(A) of(B) b) f(AUB) = f(A)

5. Given a function f: S - T and sets A,

B c S, prove the following: a) f(AnB) cf(A) of(B) b) f(AUB)

5. Given a function f: S - T and sets A, B c S, prove the following: a) f(AnB) cf(A) of(B) b) f(AUB) = f(A) Uf(B) C) Acf-1(f(A))

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