{α : Type u_1} →
  {m : Type u_1 → Type u_2} →
    {β : Type u_1} →
      [inst : Std.Iterator α m β] →
        {motive : Std.Iterators.Productive α m → Sort u} →
          (t : Std.Iterators.Productive α m) →
            ((wf : WellFounded Std.IterM.IsPlausibleSkipSuccessorOf) → motive ⋯) → motive t