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

  • Thread starter 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.
 

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  • #2
mathwonk
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no, but for such things, see abelian categories by peter freyd.
 

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