Definition KSApplicative (i j : Type) : Applicative.
exists (KleeneStore i j) (KSpure i j) (@KSap i j).
apply KSpure_id.
apply composition_KS.
apply KSpure_KSpure.
apply interchange_KSpure.
Defined.
Section ComposeApplicative.
Variable (F G :Applicative).
Let FG (a:Type) := F (G a).
Definition Compose_pure (a:Type) (x:a) : FG a :=
pure F (pure G x).
Definition Compose_ap (a b:Type) (f:FG (a -> b)) (x:FG a) : FG b :=
ap (ap (pure F (fun g x => ap g x)) f) x.

Lemma Compose_identity (a:Type) (x : FG a):
Compose_ap (Compose_pure (fun y : a => y)) x = x.