fact: Definition BoundedIndex_injR {A n Bound m Bound'} (idx : BoundedIndex (A := A) (n := n) Bound) : BoundedIndex (n := n + m) (Vector.append Bound Bound').
imports: Coq.Lists.List Coq.Strings.String Coq.Arith.Arith Coq.Logic.Eqdep_dec Fiat.Common.ilist Fiat.Common.ilist2