Copyright (C) 1999-2006, HELM Team.

This file is part of HELM, an Hypertextual, Electronic
Library of Mathematics, developed at the Computer Science
Department, University of Bologna, Italy.

HELM is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

HELM is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.

For details, see the HELM web site: http://helm.cs.unibo.it/
