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Mathlib.Algebra.Category.Grp.Preadditive

The category of additive commutative groups is preadditive. #

@[simp]
theorem AddCommGrp.hom_add {M N : AddCommGrp} (f g : M N) :
@[simp]
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@[simp]
theorem AddCommGrp.hom_nsmul {M N : AddCommGrp} (n : ) (f : M N) :
Hom.hom (n f) = n Hom.hom f
instance AddCommGrp.instNegHom {M N : AddCommGrp} :
Neg (M N)
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@[simp]
theorem AddCommGrp.hom_neg {M N : AddCommGrp} (f : M N) :
@[simp]
theorem AddCommGrp.hom_sub {M N : AddCommGrp} (f g : M N) :
Equations
@[simp]
theorem AddCommGrp.hom_zsmul {M N : AddCommGrp} (n : ) (f : M N) :
Hom.hom (n f) = n Hom.hom f
def AddCommGrp.homAddEquiv {M N : AddCommGrp} :
(M N) ≃+ (M →+ N)

AddCommGrp.Hom.hom bundled as an additive equivalence.

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Instances For