proposition: Theorem multi_trans `(R : crelation X) (x y z : X) : multi R x y → multi R y z → multi R x z.
proof: Proof. intros. induction X0; auto. now eapply multi_step; eauto. Qed.
imports: Category.Lib Category.Instance.Lambda.Ltac Category.Instance.Lambda.Ty Category.Instance.Lambda.Exp Category.Instance.Lambda.Value Category.Instance.Lambda.Ren Category.Instance.Lambda.Sub Category.Instance.Lambda.Sem Category.Instance.Lambda.Step Equations(Equations)