doc-src/IsarRef/Thy/Spec.thy
changeset 42813 6c841fa92fa2
parent 42705 528a2ba8fa74
child 42936 48a0a9db3453
--- a/doc-src/IsarRef/Thy/Spec.thy	Sun May 15 16:40:24 2011 +0200
+++ b/doc-src/IsarRef/Thy/Spec.thy	Sun May 15 17:06:35 2011 +0200
@@ -859,7 +859,7 @@
     (@@{command ML} | @@{command ML_prf} | @@{command ML_val} |
       @@{command ML_command} | @@{command setup} | @@{command local_setup}) @{syntax text}
     ;
-    @@{command attribute_setup} @{syntax name} '=' @{syntax text} @{syntax text}
+    @@{command attribute_setup} @{syntax name} '=' @{syntax text} @{syntax text}?
   "}
 
   \begin{description}