+++ /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 "ground/relocation/gr_tl.ma".
-include "ground/relocation/gr_isi.ma".
-
-(* IDENTITY CONDITION FOR GENERIC RELOCATION MAPS ***************************)
-
-(* Constructions with gr_tl *************************************************)
-
-(*** isid_tl *)
-lemma gr_isi_tl (f): 𝐈❪f❫ → 𝐈❪⫰f❫.
-#f cases (gr_map_split_tl f) * #H
-[ /2 width=3 by gr_isi_inv_push/
-| elim (gr_isi_inv_next … H) -H //
-]
-qed.