ISABELLE COPYRIGHT NOTICE, LICENCE AND DISCLAIMER.Copyright (C) 1993 by the University of Cambridge, Cambridge, England.Permission to use, copy, modify, and distribute this software and itsdocumentation for any non-commercial purpose and without fee is herebygranted, provided that the above copyright notice appears in all copies andthat both the copyright notice and this permission notice and warrantydisclaimer appear in supporting documentation, and that the name of theUniversity of Cambridge not be used in advertising or publicity pertainingto distribution of the software without specific, written prior permission.The University of Cambridge disclaims all warranties with regard to thissoftware, including all implied warranties of merchantability and fitness.In no event shall the University of Cambridge be liable for any special,indirect or consequential damages or any damages whatsoever resulting fromloss of use, data or profits, whether in an action of contract, negligenceor other tortious action, arising out of or in connection with the use orperformance of this software.