proposition: Lemma SCF_simpl1 l: SCF (0::l) = SCF' l.
proof: Proof. by rewrite /= add0r. Qed.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq choice fintype order bigop ssralg) mathcomp(div ssrnum ssrint rat prime path binomial) mathcomp(tuple finset) gaia(fibm)