Abelian Case
If is an abelian category, an object A of is injective iff its hom functor HomC(–,A) is exact.
The abelian case was the original framework for the notion of injectivity.
Read more about this topic: Injective Object
Famous quotes containing the word case:
“Consumer wants can have bizarre, frivolous, or even immoral origins, and an admirable case can still be made for a society that seeks to satisfy them. But the case cannot stand if it is the process of satisfying wants that creates the wants.”
—John Kenneth Galbraith (b. 1908)