matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_lpxs.ma

   1 (**************************************************************************)
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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                  *)
  12 (*                                                                        *)
  13 (**************************************************************************)
  14
  15 include "basic_2/rt_computation/csx_lpx.ma".
  16 include "basic_2/rt_computation/lpxs_lpx.ma".
  17
  18 (* CONTEXT-SENSITIVE EXTENDED STRONGLY NORMALIZING TERMS ********************)
  19
  20 (* Properties with unbound parallel rt-computation on all entries ***********)
  21
  22 lemma csx_lpxs_conf: ∀h,G,L1,L2,T. ❪G,L1❫ ⊢ ⬈*[h] L2 →
  23                      ❪G,L1❫ ⊢ ⬈*[h] 𝐒❪T❫ → ❪G,L2❫ ⊢ ⬈*[h] 𝐒❪T❫.
  24 #h #G #L1 #L2 #T #H @(lpxs_ind_dx … H) -L2
  25 /3 by lpxs_step_dx, csx_lpx_conf/
  26 qed-.