proposition: Lemma ltr10 : 1 < 0 :> R = false.
proof: Proof. by rewrite le_gtF. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice) mathcomp(ssrAC div fintype path bigop order finset fingroup) mathcomp(ssralg poly)