∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] [inst_1 : CategoryTheory.Limits.HasZeroObject C]
  [inst_2 : CategoryTheory.Limits.HasZeroMorphisms C] {X : C} (t : CategoryTheory.Limits.IsTerminal X),
  (CategoryTheory.Limits.HasZeroObject.zeroIsoIsTerminal t).hom = 0