proposition: Lemma unit_l'_pure (A : Type) : unit_l' ⩯ @pure _ _ A (void + A) unit_l'.
proof: Proof. reflexivity. Qed.
imports: Coq(Program Setoid Morphisms RelationClasses) ExtLib(Structures.Monad) ITree(Basics.Basics Basics.Category Basics.Monad Basics.CategoryFunctor Basics.CategoryKleisli Basics.Function)