∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C] {X Y : C}
  {f : X ⟶ Y} {Z : C} (ι ι_1 : Z ⟶ X) (e_ι : ι = ι_1) (w : CategoryTheory.CategoryStruct.comp ι f = 0),
  CategoryTheory.Limits.KernelFork.ofι ι w = CategoryTheory.Limits.KernelFork.ofι ι_1 ⋯