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Math Help - [Abstract Algebra] Anyone care to proof-read a proof?

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    [Abstract Algebra] Anyone care to proof-read a proof?

    Have to turn in a perfect proof tomorrow. Anyone care to proof-read it? I can send it as a private message since I can't post until I present... just in case.
    It is proving the following:

    Let G be a group. If H and K are both normal subgroups of G, prove HK is a normal subgroup of G.
    Last edited by bondvalencebond; December 4th 2012 at 04:35 PM.
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