Commit 2023-08-17 15:19 820e7a95

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feat: the induced shift on the target category of a functor

Estimated changes

Modified Mathlib.lean

Created Mathlib/CategoryTheory/Shift/Induced.lean

added def CategoryTheory.Functor.CommShift.ofInduced

added theorem CategoryTheory.Functor.commShiftIso_eq_ofInduced

added theorem CategoryTheory.HasShift.Induced.add_hom_app_obj

added theorem CategoryTheory.HasShift.Induced.add_inv_app_obj

added theorem CategoryTheory.HasShift.Induced.zero_hom_app_obj

added theorem CategoryTheory.HasShift.Induced.zero_inv_app_obj

added theorem CategoryTheory.induced_add_inv_app_obj

added theorem CategoryTheory.shiftFunctorAdd_hom_app_obj_of_induced

added theorem CategoryTheory.shiftFunctorZero_hom_app_obj_of_induced

added theorem CategoryTheory.shiftFunctorZero_inv_app_obj_of_induced

added theorem CategoryTheory.shiftFunctor_of_induced