2. Prove the following: Lemma 1. Consider a function f, defined for all positive integers. Suppose...

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2. Prove the following: Lemma 1. Consider a function f, defined for all positive integers. Suppose that for all u, v with ulv

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mea Date Û f IN C if ur i.e Then f(a) ged(u, v)=1 f(u) = k&frue) frr some k. then obsome of Cn) = 0 If k=0 If K&0. men g(2) i

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