Question: 2. Consider a map f: ZN being determined by: 2-1 when = (0, +) I f(x) = { -2.r when == 2 (-0,0] Prove

2. Consider a map f: ZN being determined by: 2-1 when = (0, +) I f(x) = { -2.r when == 2 (-0,0] Prove f is a bijection, find f. Can we conclude that N < < Z?

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