(* croissance de predta_coacc *)
Definition lemd (d : preDTA) : mRelation bool :=
fun m0 m1 : Map bool =>
ensemble_base state d m0 /\ ensemble_base state d m1 /\ lem m0 m1.

Lemma predta_coacc_increasing :
forall (d : preDTA) (a : ad),
increasing_app bool (lemd d) (predta_coacc d a).