proposition: Lemma addRpos_gt0 (x y : Rpos) : ((x + y)%coqR > 0)%mcR.
proof: Proof. exact/RltP/addR_gt0. Qed.
imports: mathcomp(all_ssreflect) mathcomp(all_algebra vector reals normedtype) mathcomp(mathcomp_extra boolp) mathcomp(Rstruct) ssrR realType_ext Reals Lra mathcomp(lra)