-(**************************************************************************)
-(* ___ *)
-(* ||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_isi_id.ma".
-include "ground/relocation/gr_pat_pat_id.ma".
-
-(* IDENTITY CONDITION FOR GENERIC RELOCATION MAPS ***************************)
-
-(* Advanced constructions with gr_isi ***************************************)
-
-(*** isid_at *)
-lemma gr_isi_pat (f): (∀i. @❪i,f❫ ≘ i) → 𝐈❪f❫.
-/3 width=1 by gr_eq_id_isi, gr_pat_inv_id/
-qed.
-
-(* Inversions with gr_pat ***************************************************)
-
-(*** isid_inv_at *)
-lemma gr_isi_inv_pat (f) (i): 𝐈❪f❫ → @❪i,f❫ ≘ i.
-/3 width=3 by gr_isi_inv_eq_id, gr_pat_id, gr_pat_eq_repl_back/
-qed-.
-
-(* Destructions with gr_pat *************************************************)
-
-(*** isid_inv_at_mono *)
-lemma gr_isi_pat_des (f) (i1) (i2): 𝐈❪f❫ → @❪i1,f❫ ≘ i2 → i1 = i2.
-/4 width=3 by gr_isi_inv_eq_id, gr_pat_id_des, gr_pat_eq_repl_fwd/
-qed-.