# identity element of Group

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• March 2nd 2009, 09:03 PM
jzellt
identity element of Group
Show that if e is the identity element for a group, then e is its own inverse.
• March 2nd 2009, 09:23 PM
ThePerfectHacker
Quote:

Originally Posted by jzellt
Show that if e is the identity element for a group, then e is its own inverse.

Because $ee=ee=e$.