proposition: Lemma fdist_proj13_domin a b c : fdist_proj13 (a, c) = 0 -> P (a, b, c) = 0.
proof: Proof. by rewrite fdist_proj13E /= => /psumr_eq0P ->. Qed.
imports: mathcomp(all_ssreflect ssralg fingroup perm matrix) mathcomp(all_algebra vector reals normedtype) mathcomp(mathcomp_extra boolp) mathcomp(Rstruct) ssrR logb realType_ext ssr_ext ssralg_ext bigop_ext