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3 (*      ||M||                                                             *)
4 (*      ||A||       A project by Andrea Asperti                           *)
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10 (*       \ /        This file is distributed under the terms of the       *)
11 (*        v         GNU General Public License Version 2                  *)
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14
15 include "delayed_updating/relocation/sbr_pap.ma".
16 include "ground/relocation/tr_id.ma".
17
18 (* POSITIVE APPLICATION FOR STACKS OF BASIC RELOCATION MAPS *****************)
19
20 (* Constructions with tr_id *************************************************)
21
22 lemma sbr_pap_id (p):
23       p = 𝐢❘@❨p❩.
24 #p elim p -p [| #p #IH ] <tr_id_unfold //
25 <sbr_pap_unfold_unit_succ //
26 qed.