Preamble
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 Lesser
General Public License instead.) You can Anwenden 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 for-
bid anyone to deny you these rights or to ask you to surrender
the rights. These restrictions translate to certain responsibi-
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