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renaming in basic_2
[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / syntax / tdeq_ext.ma
index c4ed53ed073eab1357c5f7a9bf1dbd302080095b..93a3be18d31c3edc803e4a17429ad650e249b30b 100644 (file)
 (*                                                                        *)
 (**************************************************************************)
 
+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 cdeq: ∀h. sd h → relation3 lenv term term ≝
-                 λh,o,L. tdeq h o.
-
 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.
+
 definition cdeq_ext: ∀h. sd h → relation3 lenv bind bind ≝
                      λh,o. cext2 (cdeq h o).
 
 interpretation
-   "degree-based equivalence (binder)"
-   'LazyEq h o I1 I2 = (tdeq_ext 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).