proposition: Lemma ltr1z (n : int) : (1 < n%:~R :> R) = (1 < n).
proof: Proof. by rewrite -[1]/(1%:~R) ltr_int. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat choice seq) mathcomp(fintype finfun bigop order ssralg countalg ssrnum) mathcomp(poly)