import OAI.Algebra.AuslanderReiten.Tensor.BalancedTensorCompleteAction namespace OAI noncomputable section open CategoryTheory CategoryTheory.Abelian CategoryTheory.Limits open scoped ModuleCat.Algebra namespace ArExplicit.BalancedTensor universe u variable {k R F : Type u} [Field k] [Ring R] [Algebra k R] [Module.Finite k R] variable [AddCommGroup F] [Module k F] [Module Rᵐᵒᵖ F] [Module R F] variable [IsScalarTower k Rᵐᵒᵖ F] variable [SMulCommClass k R F] [SMulCommClass R Rᵐᵒᵖ F] variable [Module.Finite Rᵐᵒᵖ F] [Module.Projective Rᵐᵒᵖ F] variable [Module.Finite R F] [Module.Projective R F] attribute [local instance] moduleCatBaseModule moduleCatBaseTower variable [PreservesFiniteLimits (functor (k := k) (R := R) (S := R) (F := F))] variable [PreservesFiniteColimits (functor (k := k) (R := R) (S := R) (F := F))] variable [(functor (k := k) (R := R) (S := R) (F := F)).PreservesProjectiveObjects] variable (τ : FrobeniusTrace k R) (M : FiniteLeftModule k R) variable (e : BalancedTensor k R F M.carrier ≃ₗ[R] M.carrier) theorem completeActionIn_quotient : (HomotopyCategory.quotient _ _).map (completeActionIn τ M e) = (completeTensorIso τ M M e).inv := by apply (cancel_mono (completeTensorIso τ M M e).hom).1 have h := completeAction_inverse τ M e rw [CategoryTheory.Functor.map_comp, completeActionOut_quotient] at h exact h.trans (completeTensorIso τ M M e).inv_hom_id.symm end ArExplicit.BalancedTensor end end OAI