∀ {C₀ : Type u₀} {C : Type u} [inst : CategoryTheory.Category.{v₀, u₀} C₀] [inst_1 : CategoryTheory.Category.{v, u} C]
  {F : CategoryTheory.Functor C₀ C} {X : C} (data : F.PreOneHypercoverDenseData X), data.toPreOneHypercover.I₀ = data.I₀