fact: Definition carry_mulmod (f g : list Z) : list Z := chained_carries weight n s c (mulmod weight s c n f g) idxs.
imports: Coq.ZArith.ZArith Coq.Lists.List Coq.Setoids.Setoid Coq.Classes.Morphisms Coq.QArith.QArith_base Coq.QArith.Qreduction Coq.QArith.Qround