∀ {C : Type u₁} [inst : CategoryTheory.Category.{v₁, u₁} C] {A B : CategoryTheory.Functor Cᵒᵖ (Type v₁)} {f g : A ⟶ B}
  (self : CategoryTheory.IndParallelPairPresentation f g),
  g = self.isColimit₁.map { pt := B, ι := self.ι₂ } (CategoryTheory.Functor.whiskerRight self.ψ CategoryTheory.yoneda)