Documentation

Mathlib.CategoryTheory.Monoidal.CommGrp_

The category of commutative groups in a cartesian monoidal category #

A commutative group object internal to a cartesian monoidal category.

  • X : C

    The underlying object in the ambient monoidal category

  • grp : Grp_Class self.X
  • comm : IsCommMon self.X
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A commutative group object is a group object.

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A commutative group object is a commutative monoid object.

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@[reducible, inline]

A commutative group object is a monoid object.

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A finite-product-preserving functor takes commutative group objects to commutative group objects.

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The identity functor is also the identity on commutative group objects.

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Natural transformations between functors lift to commutative group objects.

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Natural isomorphisms between functors lift to commutative group objects.

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mapCommGrp is functorial in the left-exact functor.

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An adjunction of braided functors lifts to an adjunction of their lifts to commutative group objects.

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An equivalence of categories lifts to an equivalence of their commutative group objects.

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