fact: Definition label_num (l: Label): nat := match l with | put_label no n c k v s s' u => no | get_label no n c n' k s s' v => no | update_label no n c n' k v s m s' => no | fault_label no n s1 s2 => no end.
imports: Coq(FunctionalExtensionality Arith Lia) Coq(Arith.Peano_dec Arith.Compare_dec) Coq(Relations.Relation_Operators) Coq(List) Chapar(Predefs)