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    Isomorphic groups

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    Decide which (if any) of the following are isomorphic to which:

    (a) D3xS4 (b) D6xA4 (c) D4xD9

    Dn=dihedral group of order 2n, An=alternating group of degree n, Sn=symmetric group of degree n

    GxH=internal direct product of G and H

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    Solution Summary

    This shows how to determine if groups are isomorphic.