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Thread: identity element of Group

  1. March 2nd 2009, 09:03 PM #1
    jzellt
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    identity element of Group

    Show that if e is the identity element for a group, then e is its own inverse.
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  2. March 2nd 2009, 09:23 PM #2
    ThePerfectHacker
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    Quote Originally Posted by jzellt View Post
    Show that if e is the identity element for a group, then e is its own inverse.
    Because ee=ee=e.
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