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src/HOL/BNF_Composition.thy
changeset 67399 eab6ce8368fa
parent 67091 1393c2340eec
child 67613 ce654b0e6d69 
--- a/src/HOL/BNF_Composition.thy	Wed Jan 10 15:21:49 2018 +0100
+++ b/src/HOL/BNF_Composition.thy	Wed Jan 10 15:25:09 2018 +0100
@@ -154,7 +154,7 @@
 bnf DEADID: 'a
   map: "id :: 'a \<Rightarrow> 'a"
   bd: natLeq
-  rel: "op = :: 'a \<Rightarrow> 'a \<Rightarrow> bool"
+  rel: "(=) :: 'a \<Rightarrow> 'a \<Rightarrow> bool"
   by (auto simp add: natLeq_card_order natLeq_cinfinite)
 
 definition id_bnf :: "'a \<Rightarrow> 'a" where
isabelle