update in basic_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / rt_equivalence / cpcs_cpc.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_equivalence/cpcs_cpc.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_equivalence/cpcs_cpc.ma
new file mode 100644 (file)
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+(**************************************************************************)
+(*       ___                                                              *)
+(*      ||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_conversion/cpc_cpc.ma".
+include "basic_2/rt_equivalence/cpcs.ma".
+
+(* CONTEXT-SENSITIVE PARALLEL R-EQUIVALENCE FOR TERMS ***********************)
+
+(* Properties with context-sensitive parallel r-conversion for terms ********)
+
+lemma cpcs_strip (h) (G) (L): confluent2 … (cpcs h G L) (cpc h G L).
+#h #G #L #T1 #T @TC_strip1 /2 width=3 by cpc_conf/
+qed-.