proper loading of ML files (in HOL.thy);
moved Integ files to canonical place;
misc cleanup;

--- a/src/HOL/ROOT.ML	Thu May 31 18:16:54 2007 +0200
+++ b/src/HOL/ROOT.ML	Thu May 31 18:16:57 2007 +0200
@@ -1,44 +1,11 @@
 (*  Title:      HOL/ROOT.ML
     ID:         $Id$
-    Author:     Tobias Nipkow
-    Copyright   1993  University of Cambridge
-
+ 
 Classical Higher-order Logic.
 *)
 
-val banner = "Higher-Order Logic";
-writeln banner;
-
-use "hologic.ML";
-
-use "~~/src/Provers/splitter.ML";
-use "~~/src/Provers/hypsubst.ML";
-use "~~/src/Provers/IsaPlanner/zipper.ML";
-use "~~/src/Provers/IsaPlanner/isand.ML";
-use "~~/src/Provers/IsaPlanner/rw_tools.ML";
-use "~~/src/Provers/IsaPlanner/rw_inst.ML";
-use "~~/src/Provers/eqsubst.ML";
-use "~~/src/Provers/induct_method.ML";
-use "~~/src/Provers/classical.ML";
-use "~~/src/Provers/blast.ML";
-use "~~/src/Provers/clasimp.ML";
-use "~~/src/Pure/General/int.ML";
-use "~~/src/Pure/General/rat.ML";
-use "~~/src/Provers/Arith/fast_lin_arith.ML";
-use "~~/src/Provers/Arith/cancel_sums.ML";
-use "~~/src/Provers/quantifier1.ML";
-use "~~/src/Provers/project_rule.ML";
-use "~~/src/Provers/Arith/cancel_numerals.ML";
-use "~~/src/Provers/Arith/combine_numerals.ML";
-use "~~/src/Provers/Arith/cancel_numeral_factor.ML";
-use "~~/src/Provers/Arith/extract_common_term.ML";
-use "~~/src/Provers/quasi.ML";
-use "~~/src/Provers/order.ML";
-
-with_path "Integ" use_thy "Main";
+use_thy "Main";
 
 path_add "~~/src/HOL/Library";
 
 Goal "True";  (*leave subgoal package empty*)
-
-val HOL_proofs = !proofs;