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The module is injective iff it is a direct summand of an injective cogenerator

  1. Jun 7, 2008 #1

    ggugl

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    could any one give me a proof of this statment:

    The module is injective iff it is a direct summand of an injective cogenerator.
     
    ggugl, Jun 7, 2008
  2. jcsd
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  3. Jun 7, 2008 #2

    mathwonk

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    no, but for such things, see abelian categories by peter freyd.
     
    mathwonk, Jun 7, 2008
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