src/Pure/Thy/thy_output.ML
changeset 46957 0c15caf47040
parent 46950 d0181abdbdac
child 46958 0ec8f04e753a
--- a/src/Pure/Thy/thy_output.ML	Thu Mar 15 23:06:22 2012 +0100
+++ b/src/Pure/Thy/thy_output.ML	Fri Mar 16 11:26:55 2012 +0100
@@ -626,7 +626,7 @@
 
 (* embedded lemma *)
 
-val _ = Keyword.keyword "by";
+val _ = Keyword.declare "by" NONE;  (*overlap with command category*)
 
 val _ =
   Context.>> (Context.map_theory