Removal of Hyperreal/ExtraThms2.ML, sending the material to the correct files.
New theorems for Ring_and_Field. Fixing affected proofs.
(* Title: HOL/Real/ROOT.ML
ID: $Id$
Author: Lawrence C Paulson, Cambridge University Computer Laboratory
Copyright 1998 University of Cambridge
Construction of the Reals using Dedekind Cuts
by Jacques Fleuriot
*)
time_use_thy "Real";