proposition: Lemma itree_eta' (ot : itree' E R) : ot = observe (go ot).
proof: Proof. reflexivity. Qed.
imports: Coq(Structures.Orders Program Setoid Morphisms Relations) Paco(paco) ITree(Basics.Basics Basics.Utils Basics.HeterogeneousRelations Core.ITreeDefinition Eq.Paco2 Eq.Shallow)