Lemma isdecinclstntonat ( n : nat ) : isdecincl ( stntonat n ). Proof. intro. use isdecinclpr1. intro x. apply isdecpropif. use pr2. apply isdecrelnatgth. Defined.
Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.MoreFoundations.DecidablePropositions. Require Import UniMath.MoreFoundations.NegativePropositions.