(* Properties with ranged equivalence for local environments ****************)
-lemma lreq_lfeq: ∀L1,L2,T,f. L1 ⊢ 𝐅*⦃T⦄ ≡ f → L1 ≡[f] L2 → L1 ≡[T] L2.
+lemma lreq_lfeq: ∀f,L1,L2,T. L1 ⊢ 𝐅*⦃T⦄ ≡ f → L1 ≡[f] L2 → L1 ≡[T] L2.
/2 width=3 by ex2_intro/ qed.
(* Advanced properties ******************************************************)