proposition: Lemma ext_erase_label: forall l, N.CExec.ext (erase_label l) = N.ICExec.ext l.
proof: Proof. intros. destruct l; simpl; reflexivity. Qed.
imports: Coq(FunctionalExtensionality Arith Lia) Coq(Arith.Peano_dec Arith.Compare_dec) Coq(Relations.Relation_Operators) Coq(List) Chapar(Predefs)