Lemma snlehm_to_nltm (m n : nat) : (S n ≤ m) -> n < m. Proof. intros le_sn_m; exact le_sn_m. Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.Combinatorics.Maybe. Require Import UniMath.Combinatorics.StandardFiniteSets. Require Import UniMath.Algebra.Domains_and_Fields. Require Import UniMath.Algebra.RigsAndRings.