Dimension shifting for a covariant coherent defect

noncomputable def MagnitudeConjecture.RightModule.FiniteIndecomposableSkeleton.finiteCovariantDefectDimensionShiftLinearEquiv {k A : Type u} [Field k] [IsAlgClosed k] [Ring A] [Algebra k A] [FiniteDimensional k A] [IsNoetherianRing Aᵐᵒᵖ] (S : FiniteIndecomposableSkeleton k A) [CategoryTheory.HasExt S.FiniteCovariantFunctor] {K : CategoryTheory.ShortComplex FG} (hK : K.ShortExact) (X : S.IndecCategoryᵒᵖ) : CategoryTheory.Abelian.Ext (S.finiteCovariantDefectSyzygy K) (S.finiteCovariantRepresentableOnSkeleton.obj X) 1 ≃ₗ[k] CategoryTheory.Abelian.Ext (S.finiteCovariantDefect K) (S.finiteCovariantRepresentableOnSkeleton.obj X) 2

Dimension shifting across the right half of the covariant representable resolution.