Commit 2024-07-01 00:30 5c4a35db

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feat(CategoryTheory/GradedObject): construction of the tensor product (#11703) In this PR, the tensor product of two graded objects is constructed.

Estimated changes

Modified Mathlib.lean

Modified Mathlib/CategoryTheory/GradedObject/Bifunctor.lean

added theorem CategoryTheory.GradedObject.ι_mapBifunctorMapObjDesc

Created Mathlib/CategoryTheory/GradedObject/Monoidal.lean

added theorem CategoryTheory.GradedObject.Monoidal.tensorHom_def

added theorem CategoryTheory.GradedObject.Monoidal.tensorObj_ext

added theorem CategoryTheory.GradedObject.Monoidal.tensor_comp

added theorem CategoryTheory.GradedObject.Monoidal.tensor_id

added theorem CategoryTheory.GradedObject.Monoidal.ι_tensorHom

added theorem CategoryTheory.GradedObject.Monoidal.ι_tensorObjDesc