fact: Fixpoint comb n k := match k with | 0%nat => 1%nat | S k₁ => match n with | 0%nat => 0%nat | S n₁ => (comb n₁ k₁ + comb n₁ k)%nat end end.
imports: Utf8 QArith NPeano ArithRing Misc Field2 ConvexHull Newton Fsummation Fpolynomial Puiseux_base Puiseux_series CharactPolyn