-(**************************************************************************)
-(* ___ *)
-(* ||M|| *)
-(* ||A|| A project by Andrea Asperti *)
-(* ||T|| *)
-(* ||I|| Developers: *)
-(* ||T|| The HELM team. *)
-(* ||A|| http://helm.cs.unibo.it *)
-(* \ / *)
-(* \ / This file is distributed under the terms of the *)
-(* v GNU General Public License Version 2 *)
-(* *)
-(**************************************************************************)
-
-include "basic_2/s_transition/fqu_length.ma".
-include "basic_2/s_transition/fquq.ma".
-
-(* OPTIONAL SUPCLOSURE ******************************************************)
-
-(* Forward lemmas with length for local environments ************************)
-
-lemma fquq_fwd_length_lref1: ∀b,G1,G2,L1,L2,T2,i. ⦃G1, L1, #i⦄ ⊐⸮[b] ⦃G2, L2, T2⦄ →
- |L2| ≤ |L1|.
-#b #G1 #G2 #L1 #L2 #T2 #i #H elim H -H [2: * ]
-/3 width=6 by fqu_fwd_length_lref1, lt_to_le/
-qed-.