(* Constructions with pcc ***************************************************)
-lemma lift_path_closed (f) (q) (n):
- q ϵ 𝐂❨n❩ → ↑[f]q ϵ 𝐂❨↑[q]f@❨n❩❩.
-#f #q #n #Hq elim Hq -Hq //
-#q #n [ #k ] #_ #IH
-/2 width=1 by pcc_d_dx, pcc_m_dx, pcc_L_dx, pcc_A_dx, pcc_S_dx/
+lemma lift_path_closed (o) (f) (q) (n):
+ q ϵ 𝐂❨o,n❩ → ↑[f]q ϵ 𝐂❨o,↑[q]f@❨n❩❩.
+#o #f #q #n #H0 elim H0 -q -n //
+#q #n [ #k #Ho ] #_ #IH
+/2 width=1 by pcc_m_dx, pcc_L_dx, pcc_A_dx, pcc_S_dx/
+/4 width=1 by pcc_d_dx, tr_xap_pos/
qed.
-lemma lift_path_rmap_closed (f) (p) (q) (n):
- q ϵ 𝐂❨n❩ → ↑[↑[p]f]q ϵ 𝐂❨↑[p●q]f@❨n❩❩.
+lemma lift_path_rmap_closed (o) (f) (p) (q) (n):
+ q ϵ 𝐂❨o,n❩ → ↑[↑[p]f]q ϵ 𝐂❨o,↑[p●q]f@❨n❩❩.
/2 width=1 by lift_path_closed/
qed.
-lemma lift_path_rmap_closed_L (f) (p) (q) (n):
- q ϵ 𝐂❨n❩ → ↑[↑[p◖𝗟]f]q ϵ 𝐂❨↑[p●𝗟◗q]f@§❨n❩❩.
-#f #p #q #n #Hq
-lapply (lift_path_closed (↑[p◖𝗟]f) … Hq) #Hq0
+lemma lift_path_rmap_closed_L (o) (f) (p) (q) (n):
+ q ϵ 𝐂❨o,n❩ → ↑[↑[p◖𝗟]f]q ϵ 𝐂❨o,↑[p●𝗟◗q]f@§❨n❩❩.
+#o #f #p #q #n #Hq
+lapply (lift_path_closed … (↑[p◖𝗟]f) … Hq) #Hq0
lapply (pcc_L_sn … Hq) -Hq #Hq1
-lapply (lift_path_rmap_closed f p … Hq1) -Hq1
+lapply (lift_path_rmap_closed … f p … Hq1) -Hq1
<lift_path_L_sn >lift_rmap_L_dx #Hq1
elim (pcc_inv_L_sn … Hq1 Hq0) -Hq1 #H0 #_
<H0 in Hq0; -H0 //