X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fetc%2Fcpue%2Fcnu_cnu.etc;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fetc%2Fcpue%2Fcnu_cnu.etc;h=2bc4d3c2d448a0c9594256a3e22892c136efdeff;hb=bac74b5cff042d37e1abc9c961a6c41094b8a294;hp=0000000000000000000000000000000000000000;hpb=cacd7323994f7621286dbfd93bbf4c50acfbe918;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/etc/cpue/cnu_cnu.etc b/matita/matita/contribs/lambdadelta/basic_2/etc/cpue/cnu_cnu.etc
new file mode 100644
index 000000000..2bc4d3c2d
--- /dev/null
+++ b/matita/matita/contribs/lambdadelta/basic_2/etc/cpue/cnu_cnu.etc
@@ -0,0 +1,29 @@
+(**************************************************************************)
+(*       ___                                                              *)
+(*      ||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 "static_2/syntax/tueq_tueq.ma".
+include "basic_2/rt_transition/cpm_tueq.ma".
+include "basic_2/rt_transition/cnu.ma".
+
+(* NORMAL TERMS FOR T-UNUNBOUND RT-TRANSITION *******************************)
+
+(* Advanced properties ******************************************************)
+
+lemma cnu_tueq_trans (h) (G) (L):
+      ∀T1. ⦃G,L⦄ ⊢ ⥲[h] 𝐍⦃T1⦄ → ∀T2.T1 ≅ T2 → ⦃G,L⦄ ⊢ ⥲[h] 𝐍⦃T2⦄.
+#h #G #L #T1 #HT1 #T2 #HT12 #n #T0 #HT20
+@(tueq_canc_sn … HT12)
+elim (tueq_cpm_trans … HT12 … HT20) -T2 #T2 #HT13 #HT30
+/3 width=3 by tueq_trans/
+qed-.