Lemma isNNO_NNO (n : NNO) : isNNO n (zeroNNO n) (sucNNO n). Proof. exact (pr2 (pr2 (pr2 n))). Qed.
Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Prelude. Require Import UniMath.CategoryTheory.Limits.Terminal.