A “covered work” means either the unmodified Program or a work based on the Program.
To “propagate” a work means to do anything with it that, without permission, would make you directly or secondarily liable
for infringement under applicable copyright law, except executing it on a computer or modifying a private copy. Propagation
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activities as well.
To “convey” a work means any kind of propagation that enables other parties to make or receive copies. Mere interaction with
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An interactive user interface displays “Appropriate Legal Notices” to the extent that it includes a convenient and prominently
visible feature that (1) displays an appropriate copyright notice, and (2) tells the user that there is no warranty for the work
(except to the extent that warranties are provided), that licensees may convey the work under this License, and how to view a
copy of this License. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list
meets this criterion.
1. Source Code.
The “source code” for a work means the preferred form of the work for making modifications to it. “Object code” means any
non-source
form of a work.
A “Standard Interface” means an interface that either is an official standard defined by a recognized standards body, or, in the
case of interfaces specified for a particular programming language, one that is widely used among developers working in that
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The “System Libraries” of an executable work include anything, other than the work as a whole, that (a) is included in the
normal form of packaging a Major Component, but which is not part of that Major Component, and (b) serves only to enable
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the public in source code form. A “Major Component”, in this context, means a major essential component (kernel, window
system, and so on) of the specific operating system (if any) on which the executable work runs, or a compiler used to produce
the work, or an object code interpreter used to run it.
The “Corresponding Source” for a work in object code form means all the source code needed to generate, install, and (for an
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subprograms that the work is specifically designed to require, such as by intimate data communication or control flow between
those subprograms and other parts of the work.
The Corresponding Source need not include anything that users can regenerate automatically from other parts of the
Corresponding Source.
The Corresponding Source for a work in source code form is that same work.
2. Basic Permissions.
All rights granted under this License are granted for the term of copyright on the Program, and are irrevocable provided the
stated conditions are met. This License explicitly affirms your unlimited permission to run the unmodified Program. The output
from running a covered work is covered by this License only if the output, given its content, constitutes a covered work.
This License acknowledges your rights of fair use or other equivalent, as provided by copyright law. You may make, run and
propagate covered works that you do not convey, without conditions so long as your license otherwise remains in force. You
may convey covered works to others for the sole purpose of having them make modifications exclusively for you, or provide
you with facilities for running those works, provided that you comply with the terms of this License in conveying all material
for which you do not control copyright. Those thus making or running the covered works for you must do so exclusively on
your behalf, under your direction and control, on terms that prohibit them from making any copies of your copyrighted material
outside their relationship with you.
Conveying under any other circumstances is permitted solely under the conditions stated below. Sublicensing is not allowed;
section 10 makes it unnecessary.
3. Protecting Users’ Legal Rights From Anti-Circumvention Law.
No covered work shall be deemed part of an effective technological measure under any applicable law fulfilling obligations
under article 11 of the WIPO copyright treaty adopted on 20 December 1996, or similar laws prohibiting or restricting
circumvention of such measures.
When you convey a covered work, you waive any legal power to forbid circumvention of technological measures to the extent
such circumvention is effected by exercising rights under this License with respect to the covered work, and you disclaim any
intention to limit operation or modification of the work as a means of enforcing, against the work’s users, your or third parties’
legal rights to forbid circumvention of technological measures.
4. Conveying Verbatim Copies.
You may convey 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; keep intact all notices stating that this
License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence
of any warranty; and give all recipients a copy of this License along with the Program.
You may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a
fee.
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