src/Pure/ROOT.ML

--- a/src/Pure/ROOT.ML	Thu Sep 18 12:13:50 2008 +0200
+++ b/src/Pure/ROOT.ML	Thu Sep 18 14:06:56 2008 +0200
@@ -61,6 +61,7 @@
 use "theory.ML";
 use "interpretation.ML";
 use "proofterm.ML";
+use "deriv.ML";
 use "thm.ML";
 use "more_thm.ML";
 use "facts.ML";