proposition: Lemma ltr_sqrtC : {in Num.nneg &, {mono sqrtC : x y / x < y}}.
proof: Proof. exact: ltr_rootC. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice) mathcomp(ssrAC div fintype path bigop order finset fingroup) mathcomp(ssralg poly)