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340 bytes added , 17:04, September 24, 2007

mathiness++

'''Reductio ad absurdum''', also called [[proof]] by contradiction, is a method of mathematical proof. It involves assuming the opposite of what one is trying to prove, and showing that this would lead to a contradiction. An example of this is [[Euclid]]'s proof of the infinitude of the [[Prime number|primes]].

[[Category:Mathematics]]