matita/matita/contribs/lambdadelta/basic_2/rt_transition/lfpx_drops.ma

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   3 (*      ||M||                                                             *)
   4 (*      ||A||       A project by Andrea Asperti                           *)
   5 (*      ||T||                                                             *)
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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 "basic_2/substitution/lpx_sn_drop.ma".
  16 include "basic_2/rt_transition/cpx_drops.ma".
  17 include "basic_2/rt_transition/lfpx.ma".
  18
  19 (* UNCOUNTED PARALLEL RT-TRANSITION FOR LOCAL ENV.S ON REFERRED ENTRIES *****)
  20
  21 (* Properties on local environment slicing ***********************************)
  22
  23 lemma lpx_drop_conf: ∀h,o,G. dropable_sn (lpx h o G).
  24 /3 width=6 by lpx_sn_deliftable_dropable, cpx_inv_lift1/ qed-.
  25
  26 lemma drop_lpx_trans: ∀h,o,G. dedropable_sn (lpx h o G).
  27 /3 width=10 by lpx_sn_liftable_dedropable, cpx_lift/ qed-.
  28
  29 lemma lpx_drop_trans_O1: ∀h,o,G. dropable_dx (lpx h o G).
  30 /2 width=3 by lpx_sn_dropable/ qed-.