fact: Definition poly_inject_K_in_Kx α {R : ring α} {K : field R} f := (POL (lap_inject_K_in_Kx (al f)))%pol.
imports: Utf8 QArith NPeano Sorted ConvexHullMisc ConvexHull PolyConvexHull Field2 Misc Newton NbarM QbarM SplitList Fsummation Fpolynomial Power_series Puiseux_series Ps_add Ps_mul Ps_div Ps_add_compat PSpolynomial Puiseux_base CharactPolyn AlgCloCharPol