X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2FGround_2%2Fnotation.ma;h=65cb0a029002d649b669574ca28b4cc1fcf440ef;hb=fc7af5f9ea2cd4a876b8babc6b691136799e3c87;hp=dab6b49826bb7307257e89cf611a2638fe8b577d;hpb=04f6ca789cac88220234a3bdfb497844c417ef14;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/Ground_2/notation.ma b/matita/matita/contribs/lambda_delta/Ground_2/notation.ma
index dab6b4982..65cb0a029 100644
--- a/matita/matita/contribs/lambda_delta/Ground_2/notation.ma
+++ b/matita/matita/contribs/lambda_delta/Ground_2/notation.ma
@@ -14,6 +14,12 @@
 
 (* GENERAL NOTATION USED BY THE FORMAL SYSTEM λδ ****************************)
 
+(* Subsets ******************************************************************)
+
+notation "hvbox( T ϵ break R )"
+   non associative with precedence 45
+   for @{ 'InSubset $T $R }.
+
 (* Lists ********************************************************************)
 
 notation "hvbox( hd break :: tl )"