(* *)
(**************************************************************************)
-include "delayed_updating/substitution/lift_gen_eq.ma".
+include "delayed_updating/substitution/lift_rmap_eq.ma".
include "delayed_updating/syntax/path_head.ma".
-include "delayed_updating/syntax/path_reverse.ma".
include "ground/lib/stream_eq_eq.ma".
(* LIFT MAP FOR PATH ********************************************************)
(* Constructions with path_head *********************************************)
-lemma tls_plus_lift_rmap_reverse_closed (f) (q) (n) (k):
+lemma tls_plus_lift_rmap_closed (f) (q) (n) (m):
q = ↳[n]q →
- ⇂*[k]f ≗ ⇂*[n+k]↑[qᴿ]f.
+ ⇂*[m]f ≗ ⇂*[n+m]↑[q]f.
#f #q elim q -q
-[ #n #k #Hq
+[ #n #m #Hq
<(eq_inv_path_empty_head … Hq) -n //
| #l #q #IH #n @(nat_ind_succ … n) -n //
- #n #_ #k cases l [ #m ]
- [ <path_head_d_sn #Hq
- elim (eq_inv_list_lcons_bi ????? Hq) -Hq #_ #Hp <nrplus_inj_sn
- <reverse_lcons
+ #n #_ #m cases l [ #k ]
+ [ <path_head_d_dx #Hq
+ elim (eq_inv_list_lcons_bi ????? Hq) -Hq #_ #Hq <nrplus_inj_sn
@(stream_eq_trans … (tls_lift_rmap_d_dx …))
>nrplus_inj_dx >nrplus_inj_sn >nrplus_inj_sn <nplus_plus_comm_23
>nsucc_unfold /2 width=1 by/
- | <path_head_m_sn #Hq
+ | <path_head_m_dx #Hq
elim (eq_inv_list_lcons_bi ????? Hq) -Hq #_ #Hq
- <reverse_lcons <lift_rmap_m_dx /2 width=1 by/
- | <path_head_L_sn #Hq
+ <lift_rmap_m_dx /2 width=1 by/
+ | <path_head_L_dx #Hq
elim (eq_inv_list_lcons_bi ????? Hq) -Hq #_ #Hq
- <reverse_lcons <lift_rmap_L_dx <nplus_succ_sn /2 width=1 by/
- | <path_head_A_sn #Hq
+ <lift_rmap_L_dx <nplus_succ_sn /2 width=1 by/
+ | <path_head_A_dx #Hq
elim (eq_inv_list_lcons_bi ????? Hq) -Hq #_ #Hq
- <reverse_lcons <lift_rmap_A_dx /2 width=2 by/
- | <path_head_S_sn #Hq
+ <lift_rmap_A_dx /2 width=2 by/
+ | <path_head_S_dx #Hq
elim (eq_inv_list_lcons_bi ????? Hq) -Hq #_ #Hq
- <reverse_lcons <lift_rmap_S_dx /2 width=2 by/
+ <lift_rmap_S_dx /2 width=2 by/
]
]
qed-.
lemma tls_lift_rmap_closed (f) (q) (n):
- qᴿ = ↳[n](qᴿ) →
+ q = ↳[n]q →
f ≗ ⇂*[n]↑[q]f.
#f #q #n #H0
->(reverse_reverse q)
-/2 width=1 by tls_plus_lift_rmap_reverse_closed/
+/2 width=1 by tls_plus_lift_rmap_closed/
qed.