-(**************************************************************************)
-(* ___ *)
-(* ||M|| *)
-(* ||A|| A project by Andrea Asperti *)
-(* ||T|| *)
-(* ||I|| Developers: *)
-(* ||T|| The HELM team. *)
-(* ||A|| http://helm.cs.unibo.it *)
-(* \ / *)
-(* \ / This file is distributed under the terms of the *)
-(* v GNU General Public License Version 2 *)
-(* *)
-(**************************************************************************)
-
-include "delayed_updating/unwind/unwind2_path_structure.ma".
-include "delayed_updating/syntax/path_inner.ma".
-
-(* UNWIND FOR PATH **********************************************************)
-
-(* Destructions with inner condition for path *******************************)
-
-lemma unwind2_path_des_inner (f) (p):
- ▼[f]p ϵ 𝐈 → p ϵ 𝐈.
-#f #p @(list_ind_rcons … p) -p //
-#p * [ #n ] #_ //
-<unwind2_path_d_dx #H0
-elim (pic_inv_d_dx … H0)
-qed-.