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-rw-r--r--isa/isabelle-system.el5
1 files changed, 5 insertions, 0 deletions
diff --git a/isa/isabelle-system.el b/isa/isabelle-system.el
index 7cadc19a..7087120a 100644
--- a/isa/isabelle-system.el
+++ b/isa/isabelle-system.el
@@ -301,6 +301,11 @@ until Proof General is restarted."
:type 'boolean
:setting "trace_simp:=%b;")
+(defpacustom trace-rules nil
+ "Whether to trace the standard rules in Isabelle."
+ :type 'boolean
+ :setting "trace_rules:=%b;")
+
(defpacustom quick-and-dirty t
"Whether to take a few short cuts occasionally."
:type 'boolean