matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubv_lsubr.ma

   1 (**************************************************************************)
   2 (*       ___                                                              *)
   3 (*      ||M||                                                             *)
   4 (*      ||A||       A project by Andrea Asperti                           *)
   5 (*      ||T||                                                             *)
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   9 (*      \   /                                                             *)
  10 (*       \ /        This file is distributed under the terms of the       *)
  11 (*        v         GNU General Public License Version 2                  *)
  12 (*                                                                        *)
  13 (**************************************************************************)
  14
  15 include "static_2/static/lsubr.ma".
  16 include "basic_2/dynamic/lsubv.ma".
  17
  18 (* LOCAL ENVIRONMENT REFINEMENT FOR NATIVE VALIDITY *************************)
  19
  20 (* Forward lemmas with restricted refinement for local environments *********)
  21
  22 (* Basic_2A1: uses: lsubsv_fwd_lsubr *)
  23 lemma lsubv_fwd_lsubr (a) (h) (G): ∀L1,L2. G ⊢ L1 ⫃![a,h] L2 → L1 ⫃ L2.
  24 #a #h #G #L1 #L2 #H elim H -L1 -L2 /2 width=1 by lsubr_bind, lsubr_beta/
  25 qed-.