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Find the error in this proof of the following false: Claim: There is a positive integer n such that 2n = 0. Proof. Let

Find the error in this proof of the following false: Claim: There is a positive integer n such that 2n = 0. Proof. Let S be the set of all positive integers n with 2n = 0. By the least-number principle, S has a least element no, and we have that no is a positive integer with 2no = 0.

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