proposition: Lemma length_wordToQueue : forall sz (w : word sz), length (wordToQueue w) = sz.
proof: Proof. induction w; simpl; eauto. rewrite app_length, IHw; simpl; omega. 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