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Math Help - Finite ring question.

  1. #1
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    Finite ring question.

    Let A be a finite ring. For x in A, show some power of x is idempotent.
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  2. #2
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    I came up with a solution. Is anybody interested?
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  3. #3
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    Quote Originally Posted by whipflip15 View Post
    I came up with a solution. Is anybody interested?
    Okay.
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