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/unwind0/unwind2_rmap.ma".
16 include "delayed_updating/unwind0/unwind2_path.ma".
17 include "delayed_updating/unwind0/unwind1_path_structure.ma".
19 (* EXTENDED UNWIND FOR PATH *************************************************)
21 (* Constructions with structure *********************************************)
23 lemma unwind2_path_d_dx (f) (p) (n):
24 (⊗p)◖𝗱((▶[f]p)@❨n❩) = ▼[f](p◖𝗱n).
26 <unwind2_path_unfold <lift_path_d_dx <unwind1_path_d_dx
27 <structure_lift >tr_compose_pap //