proposition: Lemma ler10 : 1 <= 0 :> R = false.
proof: Proof. by rewrite lt_geF. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice) mathcomp(ssrAC div fintype path bigop order finset fingroup) mathcomp(ssralg poly)