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Math Help - normal subgroups

  1. #1
    Junior Member
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    normal subgroups

    Find a group G and subgroups H;K of G such that H is a normal subgroup to K, K is a normal subgroup to G and H is not a normal
    subgroup of G.
    This question is driving me crazy ... any suggestions or hints.. to solve this problem..
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  2. #2
    MHF Contributor Swlabr's Avatar
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    Quote Originally Posted by Dreamer78692 View Post
    Find a group G and subgroups H;K of G such that H is a normal subgroup to K, K is a normal subgroup to G and H is not a normal
    subgroup of G.
    This question is driving me crazy ... any suggestions or hints.. to solve this problem..
    Look in S_4.
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