proposition: Lemma SCF_neg3 a l : SCF (rcons (rcons l a) (-1)) = SCF (rcons l (a-1)).
proof: Proof. by rewrite SCF_recl mul1r. 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)