HOL Light copyright notice, licence and disclaimer (c) University of Cambridge 1998 (c) Copyright, John Harrison 1998-2008 HOL Light version 2.20, hereinafter referred to as "the software", is a computer theorem proving system written by John Harrison. Much of the software was developed at the University of Cambridge Computer Laboratory, New Museums Site, Pembroke Street, Cambridge, CB2 3QG, England. The software is copyright, University of Cambridge 1998 and John Harrison 1998-2007. Permission to use, copy, modify, and distribute the software and its documentation for any purpose and without fee is hereby granted. In the case of further distribution of the software the present text, including copyright notice, licence and disclaimer of warranty, must be included in full and unmodified form in any release. Distribution of derivative software obtained by modifying the software, or incorporating it into other software, is permitted, provided the inclusion of the software is acknowledged and that any changes made to the software are clearly documented. John Harrison and the University of Cambridge disclaim all warranties with regard to the software, including all implied warranties of merchantability and fitness. In no event shall John Harrison or the University of Cambridge be liable for any special, indirect, incidental or consequential damages or any damages whatsoever, including, but not limited to, those arising from computer failure or malfunction, work stoppage, loss of profit or loss of contracts.