X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Flib%2Fbasics%2Fsets.ma;h=cdc6ac9e8e278e19c3d7957bf600f7150ae1d895;hb=a04fa03fcea0493e89b725960146cc0c06539583;hp=7c791da41b07eeb308c124706a1901bb565f1141;hpb=fe7d9f4665e92d9c6934988b2b215547ab7ecf3f;p=helm.git

diff --git a/matita/matita/lib/basics/sets.ma b/matita/matita/lib/basics/sets.ma
index 7c791da41..cdc6ac9e8 100644
--- a/matita/matita/lib/basics/sets.ma
+++ b/matita/matita/lib/basics/sets.ma
@@ -38,6 +38,7 @@ interpretation "subset" 'subseteq a b = (subset ? a b).
 
 (* extensional equality *)
 definition eqP ≝ λA:Type[0].λP,Q:A → Prop.∀a:A.P a ↔ Q a.
+(* ≐ is typed as \doteq *)
 notation "A ≐ B" non associative with precedence 45 for @{'eqP $A $B}.
 interpretation "extensional equality" 'eqP a b = (eqP ? a b).