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4 (* ||A|| A project by Andrea Asperti *)
6 (* ||I|| Developers: *)
7 (* ||T|| The HELM team. *)
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15 include "basic_2/reduction/fpb_lift.ma".
16 include "basic_2/computation/fpbg.ma".
18 (* "QRST" PARALLEL COMPUTATION FOR CLOSURES *********************************)
20 (* Advanced properties ******************************************************)
22 lemma sta_fpbg: ∀h,o,G,L,T1,T2,d. ⦃G, L⦄ ⊢ T1 ▪[h, o] d+1 →
23 ⦃G, L⦄ ⊢ T1 •*[h, 1] T2 → ⦃G, L, T1⦄ >≛[h, o] ⦃G, L, T2⦄.
24 /4 width=2 by fpb_fpbg, sta_fpb/ qed.