Suppose that M and N are natural numbers, such that N>M-1.(adsbygoogle = window.adsbygoogle || []).push({});

Prove that N≥M

The problem above is a rather minor lemma that I obtained while proving the ratio test from calculus. I was able to successfully prove the ratio test itself, but I took this lemma for granted, which I am now trying to prove.

I expected that since this lemma was rather simple, it would be easy enough to prove, but I can't seem to catch it.

Any ideas on how this might be done?

BiP

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# A lemma in the integers from calculus

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