--- a/src/HOL/ex/Coercion_Examples.thy Wed Jan 10 15:21:49 2018 +0100
+++ b/src/HOL/ex/Coercion_Examples.thy Wed Jan 10 15:25:09 2018 +0100
@@ -65,7 +65,7 @@
term "(1::nat) = (True = (1::nat))"
-term "op = (True = (1::nat))"
+term "(=) (True = (1::nat))"
term "[1::nat,True]"