matita/matita/contribs/lambdadelta/basic_2A/computation/fpbg_lift.ma

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  14
  15 include "basic_2A/reduction/fpb_lift.ma".
  16 include "basic_2A/computation/fpbg.ma".
  17
  18 (* "QRST" PARALLEL COMPUTATION FOR CLOSURES *********************************)
  19
  20 (* Advanced properties ******************************************************)
  21
  22 lemma sta_fpbg: ∀h,g,G,L,T1,T2,d. ⦃G, L⦄ ⊢ T1 ▪[h, g] d+1 →
  23                 ⦃G, L⦄ ⊢ T1 •*[h, 1] T2 → ⦃G, L, T1⦄ >≡[h, g] ⦃G, L, T2⦄.
  24 /4 width=2 by fpb_fpbg, sta_fpb/ qed.