∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C]
  {F :
    CategoryTheory.Pseudofunctor (CategoryTheory.LocallyDiscrete Cᵒᵖ)
      (CategoryTheory.Bicategory.Adj CategoryTheory.Cat)}
  {ι : Type t} {S : C} {X : ι → C} {f : (i : ι) → X i ⟶ S} (self : F.DescentDataAsCoalgebra f) (i₁ i₂ i₃ : ι),
  CategoryTheory.CategoryStruct.comp (self.hom i₁ i₂)
      ((F.map (f i₁).op.toLoc).l.toFunctor.map ((F.map (f i₂).op.toLoc).r.toFunctor.map (self.hom i₂ i₃))) =
    CategoryTheory.CategoryStruct.comp (self.hom i₁ i₃)
      ((F.map (f i₁).op.toLoc).l.toFunctor.map
        ((F.map (f i₂).op.toLoc).adj.unit.toNatTrans.app ((F.map (f i₃).op.toLoc).r.toFunctor.1 (self.obj i₃))))