+ "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).