src/Pure/Isar/ROOT.ML

 use "skip_proof.ML";
 use "obtain.ML";
 
 (*outer syntax*)
 use "comment.ML";
-use "outer_lex.ML";
+(*use "outer_lex.ML";*)	  (*see ../Thy/ROOT.ML*)
 use "outer_parse.ML";
 
 (*toplevel environment*)
 use "toplevel.ML";
 use "session.ML";