proposition: Lemma fold_polyCons U f iv c p : @fold U f iv (polyCons c p) = f c (@fold U f iv p).
proof: Proof. done. 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