src/HOL/Tools/lin_arith.ML

   ObjectLogic.full_atomize_tac THEN' (REPEAT_DETERM o rtac impI) THEN' raw_arith_tac ctxt false,
   more_arith_tacs ctxt];
 
 fun arith_method src =
   Method.syntax Args.bang_facts src
-  #> (fn (prems, ctxt) => Method.METHOD (fn facts =>
+  #> (fn (prems, ctxt) => METHOD (fn facts =>
       HEADGOAL (Method.insert_tac (prems @ ArithFacts.get ctxt @ facts)
       THEN' arith_tac ctxt)));
 
 end;