1 (**************************************************************************)
4 (* ||A|| A project by Andrea Asperti *)
6 (* ||I|| Developers: *)
7 (* ||T|| The HELM team. *)
8 (* ||A|| http://helm.cs.unibo.it *)
10 (* \ / This file is distributed under the terms of the *)
11 (* v GNU General Public License Version 2 *)
13 (**************************************************************************)
15 include "delayed_updating/relocation/tr_minus.ma".
16 include "ground/relocation/tr_pn.ma".
17 include "ground/arith/nat_succ.ma".
19 (* RIGHT SUBTRACTION FOR TOTAL RELOCATION MAPS ******************************)
21 (* Constructions with tr_push ***********************************************)
23 lemma tr_minus_push_succ (f) (n):
25 #f #n <tr_minus_cons_inj //
28 (* Constructions with tr_next ***********************************************)
30 lemma tr_minus_next_succ (n) (f:tr_map):