]> matita.cs.unibo.it Git - helm.git/blobdiff - matita/matita/contribs/lambdadelta/delayed_updating/unwind/unwind2_rmap_closed.ma
update in delayed_updating
[helm.git] / matita / matita / contribs / lambdadelta / delayed_updating / unwind / unwind2_rmap_closed.ma
index 7c551ed857d82aebe819bd896f23fc8dd02079e9..f38a72ac9703e9dc29884ab45df47d1c7aa7d83e 100644 (file)
 (*                                                                        *)
 (**************************************************************************)
 
+include "delayed_updating/unwind/unwind2_rmap_lift.ma".
 include "delayed_updating/unwind/unwind2_rmap_eq.ma".
+include "delayed_updating/substitution/lift_rmap_structure.ma".
 include "delayed_updating/syntax/path_closed.ma".
 include "delayed_updating/syntax/path_depth.ma".
-include "ground/relocation/xap.ma".
+include "ground/relocation/nap.ma".
+include "ground/relocation/tr_pushs_tls.ma".
+include "ground/lib/stream_tls_plus.ma".
 include "ground/lib/stream_eq_eq.ma".
-include "ground/arith/nat_le_plus.ma".
-include "ground/arith/nat_le_pred.ma".
 
 (* TAILED UNWIND FOR RELOCATION MAP *****************************************)
 
 (* Destructions with cpp ****************************************************)
 
-lemma unwind2_rmap_append_closed_dx_xap_le (f) (p) (q) (n):
-      q ϵ 𝐂❨n❩ → ∀m. m ≤ n →
-      ▶[f]q@❨m❩ = ▶[f](p●q)@❨m❩.
-#f #p #q #n #Hq elim Hq -q -n
-[|*: #q #n [ #k ] #_ #IH ] #m #Hm
-[ <(nle_inv_zero_dx … Hm) -m //
-| <unwind2_rmap_d_dx <unwind2_rmap_d_dx
-  <tr_compose_xap <tr_compose_xap
-  @IH -IH (**) (* auto too slow *)
-  @nle_trans [| @tr_uni_xap ]
-  /2 width=1 by nle_plus_bi_dx/
-| <unwind2_rmap_m_dx <unwind2_rmap_m_dx
-  /2 width=2 by/
-| <unwind2_rmap_L_dx <unwind2_rmap_L_dx
-  elim (nle_inv_succ_dx … Hm) -Hm // * #Hm #H0
-  >H0 -H0 <tr_xap_push <tr_xap_push
-  /3 width=2 by eq_f/
-| <unwind2_rmap_A_dx <unwind2_rmap_A_dx
-  /2 width=2 by/
-| <unwind2_rmap_S_dx <unwind2_rmap_S_dx
-  /2 width=2 by/
+lemma nap_plus_unwind2_rmap_closed (o) (e) (f) (q) (m) (n):
+      q ϵ 𝐂❨o,n,e❩ →
+      f@§❨m+e❩+♭q = ▶[f]q@§❨m+n❩.
+#o #e #f #q #m #n #Hq elim Hq -q -n //
+#q #n [ #k #_ ] #_ #IH
+[ <depth_d_dx <unwind2_rmap_d_dx
+  <tr_compose_nap <tr_uni_nap //
+| <depth_L_dx <unwind2_rmap_L_dx
+  <tr_nap_push <nplus_succ_dx //
 ]
 qed-.
 
-lemma unwind2_rmap_append_L_closed_dx_nap (f) (p) (q) (n):
-      q ϵ 𝐂❨n❩ →
-      ▶[f](𝗟◗q)@§❨n❩ = ▶[f](p●𝗟◗q)@§❨n❩.
-#f #p #q #n #Hq
-lapply (pcc_L_sn … Hq) -Hq #Hq
-lapply (unwind2_rmap_append_closed_dx_xap_le f p … Hq (↑n) ?) -Hq //
-<tr_xap_succ_nap <tr_xap_succ_nap #Hq
-/2 width=1 by eq_inv_nsucc_bi/
+lemma nap_unwind2_rmap_closed (o) (f) (q) (n):
+      q ϵ 𝐂❨o,n,𝟎❩ →
+      f@§❨𝟎❩+♭q = ▶[f]q@§❨n❩.
+#o #f #q #n #Hn
+/2 width=2 by nap_plus_unwind2_rmap_closed/
 qed-.
 
-lemma unwind2_rmap_push_closed_nap (f) (q) (n):
-      q ϵ 𝐂❨n❩ →
-      ♭q = ▶[⫯f]q@§❨n❩.
-#f #q #n #Hq elim Hq -q -n
-[|*: #q #n [ #k ] #_ #IH ] //
-<unwind2_rmap_d_dx <tr_compose_nap //
+lemma nap_plus_unwind2_rmap_append_closed_Lq_dx (o) (f) (p) (q) (m) (n):
+      q ϵ 𝐂❨o,n,𝟎❩ →
+      (⫯▶[f]p)@§❨m❩+♭q = ▶[f](p●𝗟◗q)@§❨m+n❩.
+#o #f #p #q #m #n #Hn
+/2 width=2 by nap_plus_unwind2_rmap_closed/
 qed-.
 
-lemma unwind2_rmap_append_closed_nap (f) (p) (q) (n):
-      q ϵ 𝐂❨n❩ →
+lemma nap_unwind2_rmap_append_closed_Lq_dx (o) (f) (p) (q) (n):
+      q ϵ 𝐂❨o,n,𝟎❩ →
       ♭q = ▶[f](p●𝗟◗q)@§❨n❩.
-#f #p #q #n #Hq
-<unwind2_rmap_append_L_closed_dx_nap //
-/2 width=1 by unwind2_rmap_push_closed_nap/
+#o #f #p #q #n #Hn
+>(nplus_zero_sn n)
+<(nap_plus_unwind2_rmap_append_closed_Lq_dx … Hn) -Hn
+<nplus_zero_sn //
 qed-.
 
-lemma tls_succ_plus_unwind2_rmap_push_closed (f) (q) (n):
-      q ϵ 𝐂❨n❩ →
+lemma tls_succ_plus_unwind2_rmap_push_closed (o) (f) (q) (n):
+      q ϵ 𝐂❨o,n,𝟎❩ →
       ∀m. ⇂*[m]f ≗ ⇂*[↑(m+n)]▶[⫯f]q.
-#f #q #n #Hq elim Hq -q -n //
-#q #n [ #k ] #_ #IH #m
-[ @(stream_eq_trans … (tls_unwind2_rmap_d_dx …))
-  >nrplus_inj_dx >nrplus_inj_sn >nsucc_unfold //
-| <unwind2_rmap_L_dx <nplus_succ_dx //
-]
+#o #f #q #n #Hn elim Hn -q -n //
+#q #n #k #_ #_ #IH #m
+@(stream_eq_trans … (tls_unwind2_rmap_d_dx …))
+>nrplus_inj_dx >nrplus_inj_sn >nsucc_unfold //
+qed-.
+
+lemma tls_succ_unwind2_rmap_push_closed (o) (f) (q) (n):
+      q ϵ 𝐂❨o,n,𝟎❩ →
+      f ≗ ⇂*[↑n]▶[⫯f]q.
+#o #f #q #n #Hn
+/2 width=2 by tls_succ_plus_unwind2_rmap_push_closed/
+qed-.
+
+lemma tls_succ_plus_unwind2_rmap_append_closed_Lq_dx (o) (f) (p) (q) (n):
+      q ϵ 𝐂❨o,n,𝟎❩ →
+      ∀m. ⇂*[m]▶[f]p ≗ ⇂*[↑(m+n)]▶[f](p●𝗟◗q).
+#o #f #p #q #n #Hn #m
+/2 width=2 by tls_succ_plus_unwind2_rmap_push_closed/
 qed-.
 
-lemma tls_succ_unwind2_rmap_append_L_closed_dx (f) (p) (q) (n):
-      q ϵ 𝐂❨n❩ →
-      ▶[f]p ≗ ⇂*[↑n]▶[f](p●𝗟◗q).
-/2 width=1 by tls_succ_plus_unwind2_rmap_push_closed/
+lemma tls_succ_unwind2_rmap_closed (f) (q) (n):
+      q ϵ 𝐂❨Ⓕ,n,𝟎❩ →
+      ⇂f ≗ ⇂*[↑n]▶[f]q.
+#f #q #n #Hn
+@(stream_eq_canc_dx … (stream_tls_eq_repl …))
+[| @(unwind2_rmap_eq_repl … (tr_compose_id_dx …)) | skip ]
+@(stream_eq_trans … (stream_tls_eq_repl …))
+[| @(lift_unwind2_rmap_after … ) | skip ]
+<tr_compose_tls <tr_id_unfold
+@(stream_eq_trans … (tr_compose_eq_repl …))
+[| @(tls_succ_unwind2_rmap_push_closed … Hn) | skip | // | skip ]
+@(stream_eq_trans ????? (tr_compose_id_dx …))
+<tr_pap_succ_nap <(nap_unwind2_rmap_closed … Hn) <nplus_zero_sn
+<lift_rmap_structure <stream_tls_succ <tr_tls_pushs //
 qed-.