proposition: Lemma format_nat_add_ptr_OK : forall n env b b' env' p z, ~ In p (getE env z) -> computes_to (format_nat n b env) (b', env') -> ~ In p (getE env' z).
proof: Proof. unfold format_nat, format_word; intros; computes_to_inv; injections; intro. rewrite IndependentCaches' in H0; eauto. Qed.
imports: Fiat.Common.Coq__8_4__8_5__Compat Bedrock.Word Coq.ZArith.ZArith Coq.Strings.Ascii Coq.Strings.String Coq.Logic.Eqdep_dec Fiat.Computation.Core Fiat.Computation.FixComp Fiat.Computation.Notations Fiat.Computation.Refinements.General Fiat.Common.DecideableEnsembles Fiat.Narcissus.Common.Specs Fiat.Narcissus.Formats.FixStringOpt Fiat.Narcissus.Formats.NatOpt Fiat.Narcissus.Formats.WordOpt Fiat.Narcissus.Formats.AsciiOpt