src/HOL/Codegenerator_Test/Generate_Efficient_Datastructures.thy

--- a/src/HOL/Codegenerator_Test/Generate_Efficient_Datastructures.thy	Tue May 24 18:46:51 2016 +0200
+++ b/src/HOL/Codegenerator_Test/Generate_Efficient_Datastructures.thy	Tue May 24 18:48:01 2016 +0200
@@ -73,6 +73,9 @@
 lemma [code, code del]:
   "Lcm_eucl = Lcm_eucl" ..
 
+lemma [code, code del]:
+  "permutations_of_set = permutations_of_set" ..
+
 (*
   If the code generation ends with an exception with the following message:
   '"List.set" is not a constructor, on left hand side of equation: ...',