proposition: Lemma conv0 a b : a <| 0%:pr |> b = b.
proof: Proof. by rewrite convC (_ : _%:pr = 1%:pr) ?conv1 //=; apply val_inj; exact: onem0. Qed.
imports: mathcomp(all_ssreflect ssralg ssrnum matrix fingroup perm) Reals Lra mathcomp(mathcomp_extra Rstruct reals) ssrR Reals_ext realType_ext Ranalysis_ext ssr_ext ssralg_ext logb fdist convex