matita/matita/contribs/lambdadelta/delayed_updating/etc/unwind0/unwind2_rmap_eq.etc

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   3 (*      ||M||                                                             *)
   4 (*      ||A||       A project by Andrea Asperti                           *)
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  10 (*       \ /        This file is distributed under the terms of the       *)
  11 (*        v         GNU General Public License Version 2                  *)
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  14
  15 include "delayed_updating/unwind0/unwind2_rmap.ma".
  16 include "ground/relocation/tr_id_compose.ma".
  17
  18 (* EXTENDED UNWIND FOR RELOCATION MAP ***************************************)
  19
  20 (* Advanced constructions ***************************************************)
  21
  22 lemma unwind2_rmap_id (p):
  23       ▶p ≗ ▶[𝐢]p.
  24 // qed.
  25
  26 lemma unwind2_rmap_empty (f):
  27       f ≗ ▶[f]𝐞.
  28 // qed.
  29
  30 lemma unwind2_rmap_d_sn (f) (p) (n):
  31       ▶[𝐮❨f@❨n❩❩]p ≗ ▶[f](𝗱n◗p).
  32 #f #p #n
  33 <unwind2_rmap_unfold <unwind2_rmap_unfold
  34 <lift_rmap_d_sn <lift_rmap_id
  35 <lift_path_d_sn <lift_path_id <unwind1_rmap_d_sn //
  36 qed.