proposition: Lemma probKC (p : {prob R}) : Prob.p p + (Prob.p p).~ = 1 :> R.
proof: Proof. exact: onemKC. Qed.
imports: mathcomp(all_ssreflect ssralg ssrnum) mathcomp(reals normedtype) mathcomp(mathcomp_extra boolp) mathcomp(lra ring Rstruct)