diff -r ce09935439b3 -r 2e0b7ca391dc src/Tools/isac/Knowledge/DiophantEq.thy
--- a/src/Tools/isac/Knowledge/DiophantEq.thy	Wed Aug 03 18:17:27 2022 +0200
+++ b/src/Tools/isac/Knowledge/DiophantEq.thy	Thu Aug 04 12:48:37 2022 +0200
@@ -33,7 +33,7 @@
     (Try (Calculate ''TIMES''))) e_e)"
 
 method met_test_diophant : "Test/solve_diophant" =
-  \<open>{rew_ord' = "e_rew_ord", rls' = tval_rls, srls = Rule_Set.empty, prls = Rule_Set.empty, calc = [],
+  \<open>{rew_ord' = "Rewrite_Ord.id_empty", rls' = tval_rls, srls = Rule_Set.empty, prls = Rule_Set.empty, calc = [],
     crls = tval_rls, errpats = [], nrls = Test_simplify}\<close>
   Program: diophant_equation.simps
   Given: "boolTestGiven e_e" "intTestGiven (v_v::int)"