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-rw-r--r--etc/isar/trace_simp.thy2
1 files changed, 1 insertions, 1 deletions
diff --git a/etc/isar/trace_simp.thy b/etc/isar/trace_simp.thy
index 06458a84..1f56cb35 100644
--- a/etc/isar/trace_simp.thy
+++ b/etc/isar/trace_simp.thy
@@ -6,7 +6,7 @@ text {*
this produces massive amount of simplifier trace, but terminates
eventually: *}
-ML {* set trace_simp *}
+ML {* Config.put trace_simp true *}
ML {* reset quick_and_dirty *}
datatype ord = Zero | Succ ord | Limit "nat => ord"