X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fsyntax%2Ftdeq_ext.ma;h=93a3be18d31c3edc803e4a17429ad650e249b30b;hp=4783017ee8c28fc10c7e2eaafeab6a6ea266ba24;hb=222044da28742b24584549ba86b1805a87def070;hpb=98fbba1b68d457807c73ebf70eb2a48696381da4

diff --git a/matita/matita/contribs/lambdadelta/basic_2/syntax/tdeq_ext.ma b/matita/matita/contribs/lambdadelta/basic_2/syntax/tdeq_ext.ma
index 4783017ee..93a3be18d 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/syntax/tdeq_ext.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/syntax/tdeq_ext.ma
@@ -12,11 +12,15 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "basic_2/notation/relations/stareq_5.ma".
+include "basic_2/syntax/cext2.ma".
 include "basic_2/syntax/tdeq.ma".
-include "basic_2/syntax/lenv_ext2.ma".
 
 (* EXTENDED DEGREE-BASED EQUIVALENCE ****************************************)
 
+definition tdeq_ext: ∀h. sd h → relation bind ≝
+                     λh,o. ext2 (tdeq h o).
+
 definition cdeq: ∀h. sd h → relation3 lenv term term ≝
                  λh,o,L. tdeq h o.
 
@@ -24,5 +28,13 @@ definition cdeq_ext: ∀h. sd h → relation3 lenv bind bind ≝
                      λh,o. cext2 (cdeq h o).
 
 interpretation
-   "degree-based equivalence (binders)"
-   'LazyEq h o I1 I2 = (ext2 (tdeq h o) I1 I2).
+   "context-free degree-based equivalence (binder)"
+   'StarEq h o I1 I2 = (tdeq_ext h o I1 I2).
+
+interpretation
+   "context-dependent degree-based equivalence (term)"
+   'StarEq h o L T1 T2 = (cdeq h o L T1 T2).
+
+interpretation
+   "context-dependent degree-based equivalence (binder)"
+   'StarEq h o L I1 I2 = (cdeq_ext h o L I1 I2).