milestone update in basic_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / rt_computation / fpbg_cpm.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbg_cpm.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbg_cpm.ma
new file mode 100644 (file)
index 0000000..82c1b2f
--- /dev/null
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbg_cpm.ma
@@ -0,0 +1,27 @@
+(**************************************************************************)
+(*       ___                                                              *)
+(*      ||M||                                                             *)
+(*      ||A||       A project by Andrea Asperti                           *)
+(*      ||T||                                                             *)
+(*      ||I||       Developers:                                           *)
+(*      ||T||         The HELM team.                                      *)
+(*      ||A||         http://helm.cs.unibo.it                             *)
+(*      \   /                                                             *)
+(*       \ /        This file is distributed under the terms of the       *)
+(*        v         GNU General Public License Version 2                  *)
+(*                                                                        *)
+(**************************************************************************)
+
+include "basic_2/rt_transition/cpm_fpb.ma".
+include "basic_2/rt_transition/cpm_fpbc.ma".
+include "basic_2/rt_computation/fpbg_fqup.ma".
+
+(* PROPER PARALLEL RST-COMPUTATION FOR CLOSURES *****************************)
+
+(* Properties with t-bound rt-transition for terms **************************)
+
+lemma cpm_tneqx_cpm_fpbg (h) (G) (L):
+      ∀n1,T1,T. ❪G,L❫ ⊢ T1 ➡[h,n1] T → (T1 ≅ T → ⊥) →
+      ∀n2,T2. ❪G,L❫ ⊢ T ➡[h,n2] T2 → ❪G,L,T1❫ > ❪G,L,T2❫.
+/4 width=5 by fpbc_fpbs_fpbg, fpb_fpbs, cpm_fwd_fpbc, cpm_fwd_fpb/
+qed.