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3. Prove that n! > 2 for n 24 Prove that x, 1 is divisible by x-1 for x # 1. Note: we are doing the induction on n, not x. With the caveat that x is not 1, we want to show that x2 - 1 is divisible by x - 1, x- 1 is divisible by x - 1, and so arex-1, x - 1, and so on. 4.

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