Question: 1. Let A = {-1, 0, 1} and let B = {5, 7, 9, 11}. Provide examples of functions as described below. (a) f :

1. Let A = {-1, 0, 1} and let B =

1. Let A = {-1, 0, 1} and let B = {5, 7, 9, 11}. Provide examples of functions as described below. (a) f : A - B is injective (b) g : B - A is surjective (c) h : N - N is injective but not surjective (d) p : N - N is surjective but not injective 2. Let A, B, C be nonempty sets and let f : A - B, g : B - C be functions such that g of is bijective. Prove that g is injective if and only if f is surjective

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