+++ /dev/null
-(**************************************************************************)
-(* ___ *)
-(* ||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/unwind1/unwind.ma".
-include "delayed_updating/syntax/path_depth.ma".
-include "ground/relocation/tr_id_compose.ma".
-include "ground/relocation/tr_compose_compose.ma".
-include "ground/relocation/tr_compose_pn.ma".
-include "ground/relocation/tr_compose_eq.ma".
-include "ground/relocation/tr_pn_eq.ma".
-include "ground/lib/stream_eq_eq.ma".
-
-(* UNWIND FOR PATH *********************************************************)
-(* COMMENT
-(* Constructions with depth ************************************************)
-
-lemma unwind_rmap_decompose (p) (f):
- ▼[p]f ≗ (▼[p]𝐢)∘(⫯*[❘p❘]f).
-#p @(list_ind_rcons … p) -p
-[ #f <unwind_rmap_empty <unwind_rmap_empty <tr_pushs_zero //
-| #p * [ #n ] #IH #f //
- [ <unwind_rmap_d_dx <unwind_rmap_d_dx <depth_d_dx
- @(stream_eq_canc_dx … (tr_compose_assoc …))
- /2 width=1 by tr_compose_eq_repl/
- | <unwind_rmap_L_dx <unwind_rmap_L_dx <depth_L_dx
- <tr_pushs_succ <tr_compose_push_bi
- /2 width=1 by tr_push_eq_repl/
- ]
-]
-qed.
-
-lemma unwind_rmap_pap_le (f) (p) (n):
- n < ▼❘p❘ → (▼[p]𝐢)@⧣❨n❩ = (▼[p]f)@⧣❨n❩.
-#f #p #n #Hn
->(tr_pap_eq_repl … (▼[p]f) … (unwind_rmap_decompose …))
-<tr_compose_pap <tr_pap_pushs_le //
-qed.
-*)