proposition: Lemma Rpos_gt0 (x : Rpos) : 0 < x.
proof: Proof. by case: x => p /= /RltP. Qed.
imports: mathcomp(all_ssreflect) mathcomp(all_algebra vector reals normedtype) mathcomp(mathcomp_extra boolp) mathcomp(Rstruct) ssrR realType_ext Reals Lra mathcomp(lra)