+++ /dev/null
-(**************************************************************************)
-(* ___ *)
-(* ||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/syntax/bind_weight.ma".
-include "basic_2/relocation/lifts_weight.ma".
-include "basic_2/relocation/lifts_bind.ma".
-
-(* GENERIC RELOCATION FOR BINDERS *******************************************)
-
-(* Forward lemmas with weight for binders ***********************************)
-
-lemma liftsb_fwd_bw: ∀f,I1,I2. ⬆*[f] I1 ≘ I2 → ♯{I1} = ♯{I2}.
-#f #I1 #I2 * -I1 -I2 /2 width=2 by lifts_fwd_tw/
-qed-.