fact: Definition nth_Bounded {n} (Bound : Vector.t A n) (idx : BoundedIndex Bound) : A := Vector.nth Bound (ibound (indexb idx)).
imports: Coq.Lists.List Coq.Strings.String Coq.Arith.Arith Coq.Logic.Eqdep_dec Fiat.Common.ilist Fiat.Common.ilist2