fact: Definition Rpos_over (g : R -> R) := forall x : R, (P x -> 0 <= g x)%R.
imports: Coq(ZArith Reals Psatz) mathcomp.ssreflect(ssreflect ssrbool ssrfun eqtype ssrnat bigop) Coquelicot(Coquelicot) Stdlib MathComp Xreal Interval Taylor