{F : PFunctor.{uA, uB}} →
  {motive : (a : ℕ) → PFunctor.Approx.CofixA F a → Sort u} →
    {a : ℕ} →
      (t : PFunctor.Approx.CofixA F a) →
        motive 0 PFunctor.Approx.CofixA.continue →
          ({n : ℕ} →
              (a : F.A) →
                (a_1 : F.B a → PFunctor.Approx.CofixA F n) → motive n.succ (PFunctor.Approx.CofixA.intro a a_1)) →
            motive a t