fact: Definition label_val (l: Label): Val := match l with | put_label _ n c k v s s' u => v | get_label _ n c n' k s s' v => v | update_label _ n c n' k v s m s' => v | fault_label _ n _ _ => init_val end.
imports: Coq(FunctionalExtensionality Arith Lia) Coq(Arith.Peano_dec Arith.Compare_dec) Coq(Relations.Relation_Operators) Coq(List) Chapar(Predefs)