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Thread: Proof of square root of two irrationality origin

  1. #1
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    Question Proof of square root of two irrationality origin

    What is the earliest known accepted proof of the irrationality of the square root of two or the n root of any prime preferably one that is attributed to someone?
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  2. #2
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    Re: Proof of square root of two irrationality origin

    According to this website- http://www.mathsisfun.com/numbers/eu...rrational.html the standard proof of the irrationality of the square root of 2 goes back to Euclid.
    Last edited by HallsofIvy; Mar 22nd 2018 at 03:59 PM.
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