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

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  14
  15 include "basic_2/rt_computation/fpbs_lfpxs.ma".
  16 include "basic_2/rt_computation/fpbg.ma".
  17
  18 (* PROPER PARALLEL RST-COMPUTATION FOR CLOSURES *****************************)
  19
  20 (* Properties with unbound parallel rt-computation on referred entries ******)
  21
  22 (* Basic_2A1: uses: lpxs_fpbg *)
  23 lemma lfpxs_lfdneq_fpbg: ∀h,o,G,L1,L2,T. ⦃G, L1⦄ ⊢ ⬈*[h, T] L2 →
  24                          (L1 ≛[h, o, T] L2 → ⊥) → ⦃G, L1, T⦄ >[h, o] ⦃G, L2, T⦄.
  25 #h #o #G #L1 #L2 #T #H #H0
  26 elim (lfpxs_lfdneq_inv_step_sn … H … H0) -H -H0
  27 /4 width=7 by fpb_lfpx, lfpxs_ffdeq_fpbs, ffdeq_intro_sn, ex2_3_intro/
  28 qed.