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 "ground/relocation/gr_pushs.ma".
16 include "ground/relocation/gr_tls.ma".
18 (* ITERATED TAIL FOR GENERIC RELOCATION MAPS ***********************************************************)
20 (* Properties with pushs ****************************************************)
23 lemma gr_tls_pushs (n) (f): f = ⫱*[n] ⫯*[n] f.
24 #n @(nat_ind_succ … n) -n //
25 #n #IH #f <gr_tls_swap <gr_pushs_succ <gr_tl_push //