- rc_sat.ma: we changed the notation for extensional equality. we now

[helm.git] / matita / matita / lib / lambda / lambda_notation.ma

diff --git a/matita/matita/lib/lambda/lambda_notation.ma b/matita/matita/lib/lambda/lambda_notation.ma
index 55a75eb780ea28e6010d5c2c050474cb29458f18..42f3eb2aa7c3742ae656ddaa9a29bee39962378e 100644 (file)
--- a/matita/matita/lib/lambda/lambda_notation.ma
+++ b/matita/matita/lib/lambda/lambda_notation.ma
@@ -14,6 +14,12 @@
 
 (* NOTATION FOR THE LAMBDA CALCULUS *******************************************)
 
+(* equivalences *)
+
+notation "hvbox(a break ≅ b)" 
+  non associative with precedence 45
+  for @{'Eq $a $b}.
+
 (* lifting, substitution *)
 
 notation "hvbox(M break [ l ])"