proposition: Lemma size_grec1 A F G (q : A) s n : size (grec1 F G q s n) = n.+1.
proof: Proof. by apply size_grec1up. Qed.
imports: Coq(ZArith Reals) Coquelicot(Coquelicot) mathcomp.ssreflect(ssreflect ssrfun ssrbool eqtype ssrnat seq fintype bigop) Flocq(Core) Stdlib MathComp Interval Xreal Basic_rec