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/unwind/unwind_gen.ma".
16 include "ground/relocation/tr_compose_pap.ma".
18 (* GENERIC UNWIND FOR PATH **************************************************)
20 (* Properties with tr_compose ***********************************************)
22 lemma unwind_gen_after (f2) (f1) (p):
23 ◆[f2]◆[f1]p = ◆[f2∘f1]p.
24 #f2 #f1 #p @(path_ind_unwind … p) -p //