proposition: Lemma SCF_zero_at_end L a: SCF (rcons (rcons L a) 0) = SCF (rcons L a).
proof: Proof. by rewrite SCF_recl invr0 mulr0 addr0. 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)