src/Pure/ProofGeneral/preferences.ML
changeset 41379 b31d7a1cd08f
parent 41228 e1fce873b814
child 41698 90597e044e5f
--- a/src/Pure/ProofGeneral/preferences.ML	Tue Dec 21 21:31:36 2010 +0100
+++ b/src/Pure/ProofGeneral/preferences.ML	Tue Dec 21 21:54:51 2010 +0100
@@ -153,9 +153,6 @@
   nat_pref Raw_Simplifier.simp_trace_depth_limit_default
     "trace-simplifier-depth"
     "Trace simplifier depth limit.",
-  bool_pref trace_rules
-    "trace-rules"
-    "Trace application of the standard rules",
   bool_pref Pattern.trace_unify_fail
     "trace-unification"
     "Output error diagnostics during unification",