Hey all, I can't seem to figure out the following proof: Let x be an element of the Integers. If x*x = x then x=0 or x=1. Any help would be appreciated!
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Originally Posted by jstarks44444 Hey all, I can't seem to figure out the following proof: Let x be an element of the Integers. If x*x = x then x=0 or x=1. Any help would be appreciated! Well it follows from the axioms of the integers that Since the integers form an integral domain (not sure how much abstract algebra you know), there are no zero divisors. So either or . Does this make sense?
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