X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fnotation%2Frelations%2Frdrop_4.ma;h=1728856fd3553d8b15b0cabb17a264246736300d;hb=43282d3750af8831c8100c60d75c56fdfb7ff3c9;hp=0b4a36676035e523744a5c5416a59f6ab059726b;hpb=6c985e4e2e7846a2b9abd0c84569f21c24e9ce2f;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/notation/relations/rdrop_4.ma b/matita/matita/contribs/lambdadelta/basic_2/notation/relations/rdrop_4.ma
index 0b4a36676..1728856fd 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/notation/relations/rdrop_4.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/notation/relations/rdrop_4.ma
@@ -14,6 +14,6 @@
 
 (* NOTATION FOR THE FORMAL SYSTEM λδ ****************************************)
 
-notation "hvbox( ⇩ [ term 46 d , break term 46 e ] break term 46 L1 ≡ break term 46 L2 )"
+notation "hvbox( ⬇ [ term 46 d , break term 46 e ] break term 46 L1 ≡ break term 46 L2 )"
    non associative with precedence 45
    for @{ 'RDrop $d $e $L1 $L2 }.