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10. automatic licensing of downstream recipients.
Each time you convey a covered work, the recipient
automatically receives a license from the original licensors,
to run, modify and propagate that work, subject to this
License. You are not responsible for enforcing compliance
by third parties with this License. An "entity transaction"
is a transaction transferring control of an organization, or
substantially all assets of one, or subdividing an organization,
or merging organizations. If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives
whatever licenses to the work the party's predecessor in
interest had or could give under the previous paragraph, plus
a right to possession of the Corresponding Source of the
work from the predecessor in interest, if the predecessor has
it or can get it with reasonable efforts. You may not impose
any further restrictions on the exercise of the rights granted
or affirmed under this License. For example, you may not
impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate
litigation (including a cross-claim or counterclaim in a lawsuit)
alleging that any patent claim is infringed by making, using,
selling, offering for sale, or importing the Program or any
portion of it.
11. Patents.
A "contributor" is a copyright holder who authorizes use
under this License of the Program or a work on which
the Program is based. The work thus licensed is called
the contributor's "contributor version". A contributor's
"essential patent claims" are all patent claims owned or
controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner,
permitted by this License, of making, using, or selling its
contributor version, but do not include claims that would
be infringed only as a consequence of further modification
of the contributor version. For purposes of this definition,
"control" includes the right to grant patent sublicenses in
a manner consistent with the requirements of this License.
Each contributor grants you a non-exclusive, worldwide,
royalty-free patent license under the contributor's essential
patent claims, to make, use, sell, offer for sale, import and
otherwise run, modify and propagate the contents of its
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In the following three paragraphs, a "patent license" is any
express agreement or commitment, however denominated,
not to enforce a patent (such as an express permission
to practice a patent or covenant not to sue for patent
infringement). To "grant" such a patent license to a party
means to make such an agreement or commitment not
to enforce a patent against the party. If you convey a
covered work, knowingly relying on a patent license, and
the Corresponding Source of the work is not available for
anyone to copy, free of charge and under the terms of this
License, through a publicly available network server or other
readily accessible means, then you must either (1) cause the
Corresponding Source to be so available, or (2) arrange to
deprive yourself of the benefit of the patent license for this
particular work, or (3) arrange, in a manner consistent with
the requirements of this License, to extend the patent license
to downstream recipients. "Knowingly relying" means you
have actual knowledge that, but for the patent license, your
conveying the covered work in a country, or your recipient's
use of the covered work in a country, would infringe one or
more identifiable patents in that country that you have reason
to believe are valid. If, pursuant to or in connection with a
single transaction or arrangement, you convey, or propagate
by procuring conveyance of, a covered work, and grant a
patent license to some of the parties receiving the covered
work authorizing them to use, propagate, modify or convey
a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the
covered work and works based on it. A patent license is
"discriminatory" if it does not include within the scope of its
coverage, prohibits the exercise of, or is conditioned on the
non-exercise of one or more of the rights that are specifically
granted under this License. You may not convey a covered
work if you are a party to an arrangement with a third party
that is in the business of distributing software, under which
you make payment to the third party based on the extent
of your activity of conveying the work, and under which the
third party grants, to any of the parties who would receive
the covered work from you, a discriminatory patent license
(a) in connection with copies of the covered work conveyedby
you (or copies made from those copies), or
(b) primarily for and in connection with specific products or
compilations that contain the covered work, unless you
entered into that arrangement, or that patent license
was granted, prior to 28 March 2007. Nothing in this
License shall be construed as excluding or limiting any
implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. no surrender of others' Freedom.
If 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
thisLicense. If you cannot convey a covered work so as to
satisfy simultaneously your obligations under this License
and any other pertinent obligations, then as a consequence
you may not convey it at all. For example, if you agree
to terms that obligate you to collect a royalty for further
conveying from those to whom you convey the Program, the
only way you could satisfy both those terms and this License
would be to refrain entirely from conveying the Program.
13. use with the gnu affero general Public license.
Notwithstanding any other provision of this License, you
have permission to link or combine any covered work with
a work licensed under version 3 of the GNU Affero General
Public License into a single combined work, and to convey
the resulting work. The terms of this License will continue to
apply to the part which is the covered work, but the special
requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will
apply to the combination as such.
14. revised versions of this license.
The Free Software Foundation may publish revised and/
or new versions of the GNU 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 that a certain numbered version of the
GNU General Public License "or any later version" applies to
it, you have the option of following the terms and conditions
either of that numbered version or of any later version
published by the Free Software Foundation. If the Program
does not specify a version number of the GNU General
Public License, you may choose any version ever published
by the Free Software Foundation. If the Program specifies
that a proxy can decide which future versions of the GNU
General Public License can be used, that proxy's public
statement of acceptance of a version permanently authorizes
you to choose that version for the Program. Later license
versions may give you additional or different permissions.
However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to
follow a later version.
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