syntactic components detached from basic_2 become static_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / syntax / cext2.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/syntax/cext2.ma b/matita/matita/contribs/lambdadelta/basic_2/syntax/cext2.ma
deleted file mode 100644 (file)
index 6595ba7..0000000
--- a/matita/matita/contribs/lambdadelta/basic_2/syntax/cext2.ma
+++ /dev/null
@@ -1,33 +0,0 @@
-(**************************************************************************)
-(*       ___                                                              *)
-(*      ||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/syntax/ext2.ma".
-include "basic_2/syntax/lenv.ma".
-
-(* EXTENSION TO BINDERS OF A CONTEXT-SENSITIVE RELATION FOR TERMS ***********)
-
-definition cext2: (lenv → relation term) → lenv → relation bind ≝
-                  λR,L. ext2 (R L).
-
-(* Basic properties *********************************************************)
-
-lemma cext2_sym: ∀R. (∀L1,L2,T1,T2. R L1 T1 T2 → R L2 T2 T1) →
-                 ∀L1,L2,I1,I2. cext2 R L1 I1 I2 → cext2 R L2 I2 I1.
-#R #HR #L1 #L2 #I1 #I2 * /3 width=2 by ext2_pair/
-qed-.
-
-lemma cext2_co: ∀R1,R2. (∀L,T1,T2. R1 L T1 T2 → R2 L T1 T2) →
-                ∀L,I1,I2. cext2 R1 L I1 I2 → cext2 R2 L I1 I2.
-#R1 #R2 #HR #L #I1 #I2 * /3 width=2 by ext2_unit, ext2_pair/
-qed-.