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+%% \documentclass[a4paper,12pt]{article}
+%% \usepackage{a4wide}
+%% \usepackage{times}
+%% \usepackage[T1]{fontenc}
+%% \usepackage[english]{babel}
+%% \title{The GNU General Public License}
+%% \date{}
+%% \begin{document}
+%% \maketitle
+{\parindent 0in
+Version 2, June 1991
+Copyright \copyright\ 1989, 1991 Free Software Foundation, Inc.
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+The licenses for most software are designed to take away your freedom to
+share and change it. By contrast, the GNU General Public License is
+intended to guarantee your freedom to share and change free software---to
+make sure the software is free for all its users. This General Public
+License applies to most of the Free Software Foundation's software and to
+any other program whose authors commit to using it. (Some other Free
+Software Foundation software is covered by the GNU Library General Public
+License instead.) You can apply it to your programs, too.
+When we speak of free software, we are referring to freedom, not price.
+Our General Public Licenses are designed to make sure that you have the
+freedom to distribute copies of free software (and charge for this service
+if you wish), that you receive source code or can get it if you want it,
+that you can change the software or use pieces of it in new free programs;
+and that you know you can do these things.
+To protect your rights, we need to make restrictions that forbid anyone to
+deny you these rights or to ask you to surrender the rights. These
+restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+For example, if you distribute copies of such a program, whether gratis or
+for a fee, you must give the recipients all the rights that you have. You
+must make sure that they, too, receive or can get the source code. And
+you must show them these terms so they know their rights.
+We protect your rights with two steps: (1) copyright the software, and (2)
+offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+Also, for each author's protection and ours, we want to make certain that
+everyone understands that there is no warranty for this free software. If
+the software is modified by someone else and passed on, we want its
+recipients to know that what they have is not the original, so that any
+problems introduced by others will not reflect on the original authors'
+Finally, any free program is threatened constantly by software patents.
+We wish to avoid the danger that redistributors of a free program will
+individually obtain patent licenses, in effect making the program
+proprietary. To prevent this, we have made it clear that any patent must
+be licensed for everyone's free use or not licensed at all.
+The precise terms and conditions for copying, distribution and
+modification follow.
+{\Large \sc GNU General Public License
+\\\vspace{3mm}Terms and Conditions For Copying, Distribution and Modification}
+This License applies to any program or other work which contains a notice
+placed by the copyright holder saying it may be distributed under the
+terms of this General Public License. The ``Program'', below, refers to
+any such program or work, and a ``work based on the Program'' means either
+the Program or any derivative work under copyright law: that is to say, a
+work containing the Program or a portion of it, either verbatim or with
+modifications and/or translated into another language. (Hereinafter,
+translation is included without limitation in the term ``modification''.)
+Each licensee is addressed as ``you''.
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+\item You may copy and distribute verbatim copies of the Program's source
+ code as you receive it, in any medium, provided that you conspicuously
+ and appropriately publish on each copy an appropriate copyright notice
+ and disclaimer of warranty; keep intact all the notices that refer to
+ this License and to the absence of any warranty; and give any other
+ recipients of the Program a copy of this License along with the Program.
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+You must cause the modified files to carry prominent notices stating that
+you changed the files and the date of any change.
+You must cause any work that you distribute or publish, that in
+whole or in part contains or is derived from the Program or any
+part thereof, to be licensed as a whole at no charge to all third
+parties under the terms of this License.
+If the modified program normally reads commands interactively
+when run, you must cause it, when started running for such
+interactive use in the most ordinary way, to print or display an
+announcement including an appropriate copyright notice and a
+notice that there is no warranty (or else, saying that you provide
+a warranty) and that users may redistribute the program under
+these conditions, and telling the user how to view a copy of this
+License. (Exception: if the Program itself is interactive but
+does not normally print such an announcement, your work based on
+the Program is not required to print an announcement.)
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+Accompany it with the complete corresponding machine-readable
+source code, which must be distributed under the terms of Sections
+1 and 2 above on a medium customarily used for software interchange; or,
+Accompany it with a written offer, valid for at least three
+years, to give any third party, for a charge no more than your
+cost of physically performing source distribution, a complete
+machine-readable copy of the corresponding source code, to be
+distributed under the terms of Sections 1 and 2 above on a medium
+customarily used for software interchange; or,
+Accompany it with the information you received as to the offer
+to distribute corresponding source code. (This alternative is
+allowed only for noncommercial distribution and only if you
+received the program in object code or executable form with such
+an offer, in accord with Subsection b above.)
+The source code for a work means the preferred form of the work for
+making modifications to it. For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable. However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and ``any
+later version'', you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+No Warranty
+{\sc Because the program is licensed free of charge, there is no warranty
+for the program, to the extent permitted by applicable law. Except when
+otherwise stated in writing the copyright holders and/or other parties
+provide the program ``as is'' without warranty of any kind, either expressed
+or implied, including, but not limited to, the implied warranties of
+merchantability and fitness for a particular purpose. The entire risk as
+to the quality and performance of the program is with you. Should the
+program prove defective, you assume the cost of all necessary servicing,
+repair or correction.}
+{\sc In no event unless required by applicable law or agreed to in writing
+will any copyright holder, or any other party who may modify and/or
+redistribute the program as permitted above, be liable to you for damages,
+including any general, special, incidental or consequential damages arising
+out of the use or inability to use the program (including but not limited
+to loss of data or data being rendered inaccurate or losses sustained by
+you or third parties or a failure of the program to operate with any other
+programs), even if such holder or other party has been advised of the
+possibility of such damages.}
+{\Large\sc End of Terms and Conditions}
+\section*{Appendix: How to Apply These Terms to Your New Programs}
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+ To do so, attach the following notices to the program. It is safest to
+ attach them to the start of each source file to most effectively convey
+ the exclusion of warranty; and each file should have at least the
+ ``copyright'' line and a pointer to where the full notice is found.
+{\textless}one line to give the program's name and a brief idea of what it
+does.{\textgreater} \\
+Copyright (C) {\textless}year{\textgreater} {\textless}name of
+author{\textgreater} \\
+This program 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.
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+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
+Also add information on how to contact you by electronic and paper mail.
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+Gnomovision version 69, Copyright (C) {\textless}year{\textgreater}
+{\textless}name of author{\textgreater} \\
+Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. \\
+This is free software, and you are welcome to redistribute it
+under certain conditions; type `show c' for details.
+The hypothetical commands {\tt show w} and {\tt show c} should show the
+appropriate parts of the General Public License. Of course, the commands
+you use may be called something other than {\tt show w} and {\tt show c};
+they could even be mouse-clicks or menu items---whatever suits your
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a ``copyright disclaimer'' for the program, if
+necessary. Here is a sample; alter the names:
+Yoyodyne, Inc., hereby disclaims all copyright interest in the program \\
+`Gnomovision' (which makes passes at compilers) written by James Hacker. \\
+{\textless}signature of Ty Coon{\textgreater}, 1 April 1989 \\
+Ty Coon, President of Vice
+This General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications
+with the library. If this is what you want to do, use the GNU Library
+General Public License instead of this License.
+%%% Local Variables:
+%%% mode: latex
+%%% TeX-master: t
+%%% End: