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src/HOL/Tools/Predicate_Compile/predicate_compile_fun.ML
changeset 74561 8e6c973003c8
parent 69593 3dda49e08b9d 
--- a/src/HOL/Tools/Predicate_Compile/predicate_compile_fun.ML	Wed Oct 20 17:11:46 2021 +0200
+++ b/src/HOL/Tools/Predicate_Compile/predicate_compile_fun.ML	Wed Oct 20 18:13:17 2021 +0200
@@ -22,7 +22,6 @@
 (
   type T = (term * term) Item_Net.T;
   val empty : T = Item_Net.init (op aconv o apply2 fst) (single o fst);
-  val extend = I;
   val merge = Item_Net.merge;
 )
isabelle