fact: Definition normalizing `(R : crelation X) : Type := ∀ t, ∃ t', multi R t t' ∧ normal_form R t'.
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.Log Category.Instance.Lambda.Sem Category.Instance.Lambda.Multi Category.Instance.Lambda.Sound Category.Instance.Lambda.Step Equations(Equations)