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

   1 (**************************************************************************)
   2 (*       ___                                                              *)
   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 "basic_2/rt_transition/cpm_fpb.ma".
  16 include "basic_2/rt_transition/cpm_fpbc.ma".
  17 include "basic_2/rt_computation/fpbg_fqup.ma".
  18
  19 (* PROPER PARALLEL RST-COMPUTATION FOR CLOSURES *****************************)
  20
  21 (* Properties with t-bound rt-transition for terms **************************)
  22
  23 lemma cpm_tneqx_cpm_fpbg (h) (G) (L):
  24       ∀n1,T1,T. ❪G,L❫ ⊢ T1 ➡[h,n1] T → (T1 ≅ T → ⊥) →
  25       ∀n2,T2. ❪G,L❫ ⊢ T ➡[h,n2] T2 → ❪G,L,T1❫ > ❪G,L,T2❫.
  26 /4 width=5 by fpbc_fpbs_fpbg, fpb_fpbs, cpm_fwd_fpbc, cpm_fwd_fpb/
  27 qed.