--- a/src/HOL/BNF_Examples/Process.thy Thu Mar 06 15:14:09 2014 +0100
+++ b/src/HOL/BNF_Examples/Process.thy Thu Mar 06 15:25:21 2014 +0100
@@ -23,7 +23,7 @@
declare
rel_pre_process_def[simp]
- sum_rel_def[simp]
+ rel_sum_def[simp]
prod_rel_def[simp]
(* Constructors versus discriminators *)