proposition: Lemma Vector_append_destruct {A n1 n2} (v : Vector.t A (n1+n2)) : exists v1 v2, v = Vector.append v1 v2.
proof: Proof. eauto using Vector_split_append. Qed.
imports: Fiat.Common.Coq__8_4__8_5__Compat Bedrock.Word Coq.ZArith.ZArith Coq.NArith.NArith Coq.Arith.Arith Coq.Numbers.Natural.Peano.NPeano Coq.Logic.Eqdep_dec Fiat.Narcissus.Common.Specs Fiat.Narcissus.BinLib.Core Fiat.Narcissus.Formats.ByteBuffer Coq.Strings.String Coq.Vectors.Vector Fiat.Narcissus.Formats.WordOpt Fiat.Common.Equality