∀ {C : Type u_2} [inst : CategoryTheory.Category.{u_1, u_2} C] [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C]
  {D : Type u_4} [inst_2 : CategoryTheory.Category.{u_3, u_4} D] [inst_3 : CategoryTheory.Limits.HasZeroMorphisms D]
  (P Q : C) (F : CategoryTheory.Functor C D) [inst_4 : F.PreservesZeroMorphisms]
  {X Y Z : CategoryTheory.Limits.BinaryBicone P Q} (f : X ⟶ Y) (g : Y ⟶ Z),
  { hom := F.map (CategoryTheory.CategoryStruct.comp f g).hom, wfst := ⋯, wsnd := ⋯, winl := ⋯, winr := ⋯ } =
    CategoryTheory.CategoryStruct.comp { hom := F.map f.hom, wfst := ⋯, wsnd := ⋯, winl := ⋯, winr := ⋯ }
      { hom := F.map g.hom, wfst := ⋯, wsnd := ⋯, winl := ⋯, winr := ⋯ }