fact: Parameter horner_correct : forall u pi ci p x, pi >:: p -> ci >: x -> horner u pi ci >: PolR.horner tt p x.
imports: Coq(ZArith Reals) Coquelicot(Coquelicot) mathcomp.ssreflect(ssreflect ssrfun ssrbool eqtype ssrnat seq fintype bigop) Flocq(Core) Stdlib MathComp Interval Xreal Basic_rec