∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] {D : Type u'} [inst_1 : CategoryTheory.Category.{v', u'} D]
  {J : Type u₁} [inst_2 : CategoryTheory.Category.{v₁, u₁} J] {K : Type u₂}
  [inst_3 : CategoryTheory.Category.{v₂, u₂} K] (F : CategoryTheory.Functor J (CategoryTheory.Functor K C))
  (G : CategoryTheory.Functor D K) [inst_4 : CategoryTheory.Limits.HasColimitsOfShape J C] (j : J),
  CategoryTheory.CategoryStruct.comp (G.whiskerLeft (CategoryTheory.Limits.colimit.ι F j))
      (CategoryTheory.Limits.colimitCompWhiskeringLeftIsoCompColimit F G).inv =
    CategoryTheory.Limits.colimit.ι (F.comp ((CategoryTheory.Functor.whiskeringLeft D K C).obj G)) j