The solution to this question was really minor - almost trivial - just didn't spot it for some reason. :-s Silly me!
Please feel free to delete this thread.
Last edited by TTB; Nov 24th 2009 at 08:34 PM.
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Take g_i to be the unit elment in the Group, then Ar contains r as a normal subgroup in Ar.
Ar is called the Normalizor Group of r.
Oh yeh! Ofcourse. Thank you! x
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