fact: Definition nat_fst_lt (x y : Q * Q) := (nat_num (fst x) < nat_num (fst y))%nat.
imports: Utf8 QArith Sorted NPeano ConvexHull ConvexHullMisc Misc NbarM QbarM Newton PolyConvexHull Field2 Fpolynomial PSpolynomial Puiseux_base Power_series Puiseux_series Ps_div Slope_base