proposition: Lemma probK p : p = ((Prob.p p).~).~%:pr.
proof: Proof. by apply val_inj => /=; rewrite onemK. Qed.
imports: mathcomp(all_ssreflect ssralg ssrnum) mathcomp(reals normedtype) mathcomp(mathcomp_extra boolp) mathcomp(lra ring Rstruct)