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@c -*-texinfo-*- |
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@node GNU Free Documentation License, , , Copying This Manual |
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|
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@appendix GNU Free Documentation License |
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@center Version 1.1, March 2000 |
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@display |
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Copyright (C) 2000 Free Software Foundation, Inc. |
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59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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Everyone is permitted to copy and distribute verbatim copies |
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of this license document, but changing it is not allowed. |
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@end display |
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@sp 1 |
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@enumerate 0 |
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@item |
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PREAMBLE |
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|
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The purpose of this License is to make a manual, textbook, or other |
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written document ``free'' in the sense of freedom: to assure everyone |
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the effective freedom to copy and redistribute it, with or without |
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modifying it, either commercially or noncommercially. Secondarily, |
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this License preserves for the author and publisher a way to get |
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credit for their work, while not being considered responsible for |
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modifications made by others. |
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|
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This License is a kind of ``copyleft'', which means that derivative |
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works of the document must themselves be free in the same sense. It |
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complements the GNU General Public License, which is a copyleft |
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license designed for free software. |
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|
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We have designed this License in order to use it for manuals for free |
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software, because free software needs free documentation: a free |
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program should come with manuals providing the same freedoms that the |
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software does. But this License is not limited to software manuals; |
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it can be used for any textual work, regardless of subject matter or |
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whether it is published as a printed book. We recommend this License |
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principally for works whose purpose is instruction or reference. |
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|
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@sp 1 |
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@item |
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APPLICABILITY AND DEFINITIONS |
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|
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This License applies to any manual or other work that contains a |
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notice placed by the copyright holder saying it can be distributed |
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under the terms of this License. The ``Document'', below, refers to any |
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such manual or work. Any member of the public is a licensee, and is |
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addressed as ``you.'' |
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|
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A ``Modified Version'' of the Document means any work containing the |
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Document or a portion of it, either copied verbatim, or with |
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modifications and/or translated into another language. |
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|
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A ``Secondary Section'' is a named appendix or a front-matter section of |
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the Document that deals exclusively with the relationship of the |
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publishers or authors of the Document to the Document's overall subject |
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(or to related matters) and contains nothing that could fall directly |
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within that overall subject. (For example, if the Document is in part a |
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textbook of mathematics, a Secondary Section may not explain any |
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mathematics.) The relationship could be a matter of historical |
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connection with the subject or with related matters, or of legal, |
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commercial, philosophical, ethical or political position regarding |
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them. |
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|
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The ``Invariant Sections'' are certain Secondary Sections whose titles |
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are designated, as being those of Invariant Sections, in the notice |
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that says that the Document is released under this License. |
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|
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The ``Cover Texts'' are certain short passages of text that are listed, |
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as Front-Cover Texts or Back-Cover Texts, in the notice that says that |
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the Document is released under this License. |
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|
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A ``Transparent'' copy of the Document means a machine-readable copy, |
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represented in a format whose specification is available to the |
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general public, whose contents can be viewed and edited directly and |
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straightforwardly with generic text editors or (for images composed of |
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pixels) generic paint programs or (for drawings) some widely available |
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drawing editor, and that is suitable for input to text formatters or |
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for automatic translation to a variety of formats suitable for input |
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to text formatters. A copy made in an otherwise Transparent file |
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format whose markup has been designed to thwart or discourage |
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subsequent modification by readers is not Transparent. A copy that is |
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not ``Transparent'' is called ``Opaque.'' |
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|
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Examples of suitable formats for Transparent copies include plain |
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ASCII without markup, Texinfo input format, LaTeX input format, SGML |
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or XML using a publicly available DTD, and standard-conforming simple |
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HTML designed for human modification. Opaque formats include |
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PostScript, PDF, proprietary formats that can be read and edited only |
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by proprietary word processors, SGML or XML for which the DTD and/or |
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processing tools are not generally available, and the |
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machine-generated HTML produced by some word processors for output |
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purposes only. |
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|
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The ``Title Page'' means, for a printed book, the title page itself, |
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plus such following pages as are needed to hold, legibly, the material |
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this License requires to appear in the title page. For works in |
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formats which do not have any title page as such, ``Title Page'' means |
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the text near the most prominent appearance of the work's title, |
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preceding the beginning of the body of the text. |
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@sp 1 |
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@item |
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VERBATIM COPYING |
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|
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You may copy and distribute the Document in any medium, either |
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commercially or noncommercially, provided that this License, the |
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copyright notices, and the license notice saying this License applies |
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to the Document are reproduced in all copies, and that you add no other |
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conditions whatsoever to those of this License. You may not use |
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technical measures to obstruct or control the reading or further |
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copying of the copies you make or distribute. However, you may accept |
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compensation in exchange for copies. If you distribute a large enough |
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number of copies you must also follow the conditions in section 3. |
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|
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You may also lend copies, under the same conditions stated above, and |
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you may publicly display copies. |
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@sp 1 |
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@item |
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COPYING IN QUANTITY |
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|
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If you publish printed copies of the Document numbering more than 100, |
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and the Document's license notice requires Cover Texts, you must enclose |
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the copies in covers that carry, clearly and legibly, all these Cover |
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Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on |
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the back cover. Both covers must also clearly and legibly identify |
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you as the publisher of these copies. The front cover must present |
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the full title with all words of the title equally prominent and |
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visible. You may add other material on the covers in addition. |
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Copying with changes limited to the covers, as long as they preserve |
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the title of the Document and satisfy these conditions, can be treated |
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as verbatim copying in other respects. |
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|
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If the required texts for either cover are too voluminous to fit |
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legibly, you should put the first ones listed (as many as fit |
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reasonably) on the actual cover, and continue the rest onto adjacent |
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pages. |
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|
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If you publish or distribute Opaque copies of the Document numbering |
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more than 100, you must either include a machine-readable Transparent |
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copy along with each Opaque copy, or state in or with each Opaque copy |
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a publicly-accessible computer-network location containing a complete |
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Transparent copy of the Document, free of added material, which the |
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general network-using public has access to download anonymously at no |
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charge using public-standard network protocols. If you use the latter |
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option, you must take reasonably prudent steps, when you begin |
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distribution of Opaque copies in quantity, to ensure that this |
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Transparent copy will remain thus accessible at the stated location |
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until at least one year after the last time you distribute an Opaque |
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copy (directly or through your agents or retailers) of that edition to |
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the public. |
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|
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It is requested, but not required, that you contact the authors of the |
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Document well before redistributing any large number of copies, to give |
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them a chance to provide you with an updated version of the Document. |
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@sp 1 |
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@item |
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MODIFICATIONS |
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|
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You may copy and distribute a Modified Version of the Document under |
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the conditions of sections 2 and 3 above, provided that you release |
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the Modified Version under precisely this License, with the Modified |
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Version filling the role of the Document, thus licensing distribution |
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and modification of the Modified Version to whoever possesses a copy |
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of it. In addition, you must do these things in the Modified Version: |
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|
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A. Use in the Title Page (and on the covers, if any) a title distinct |
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from that of the Document, and from those of previous versions |
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(which should, if there were any, be listed in the History section |
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of the Document). You may use the same title as a previous version |
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if the original publisher of that version gives permission.@* |
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B. List on the Title Page, as authors, one or more persons or entities |
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responsible for authorship of the modifications in the Modified |
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Version, together with at least five of the principal authors of the |
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Document (all of its principal authors, if it has less than five).@* |
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C. State on the Title page the name of the publisher of the |
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Modified Version, as the publisher.@* |
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D. Preserve all the copyright notices of the Document.@* |
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E. Add an appropriate copyright notice for your modifications |
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adjacent to the other copyright notices.@* |
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F. Include, immediately after the copyright notices, a license notice |
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giving the public permission to use the Modified Version under the |
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terms of this License, in the form shown in the Addendum below.@* |
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G. Preserve in that license notice the full lists of Invariant Sections |
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and required Cover Texts given in the Document's license notice.@* |
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H. Include an unaltered copy of this License.@* |
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I. Preserve the section entitled ``History'', and its title, and add to |
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it an item stating at least the title, year, new authors, and |
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publisher of the Modified Version as given on the Title Page. If |
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there is no section entitled ``History'' in the Document, create one |
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stating the title, year, authors, and publisher of the Document as |
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given on its Title Page, then add an item describing the Modified |
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Version as stated in the previous sentence.@* |
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J. Preserve the network location, if any, given in the Document for |
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public access to a Transparent copy of the Document, and likewise |
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the network locations given in the Document for previous versions |
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it was based on. These may be placed in the ``History'' section. |
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You may omit a network location for a work that was published at |
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least four years before the Document itself, or if the original |
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publisher of the version it refers to gives permission.@* |
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K. In any section entitled ``Acknowledgements'' or ``Dedications'', |
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preserve the section's title, and preserve in the section all the |
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substance and tone of each of the contributor acknowledgements |
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and/or dedications given therein.@* |
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L. Preserve all the Invariant Sections of the Document, |
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unaltered in their text and in their titles. Section numbers |
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or the equivalent are not considered part of the section titles.@* |
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M. Delete any section entitled ``Endorsements.'' Such a section |
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may not be included in the Modified Version.@* |
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N. Do not retitle any existing section as ``Endorsements'' |
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or to conflict in title with any Invariant Section.@* |
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@sp 1 |
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If the Modified Version includes new front-matter sections or |
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appendices that qualify as Secondary Sections and contain no material |
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copied from the Document, you may at your option designate some or all |
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of these sections as invariant. To do this, add their titles to the |
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list of Invariant Sections in the Modified Version's license notice. |
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These titles must be distinct from any other section titles. |
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|
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You may add a section entitled ``Endorsements'', provided it contains |
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nothing but endorsements of your Modified Version by various |
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parties--for example, statements of peer review or that the text has |
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been approved by an organization as the authoritative definition of a |
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standard. |
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|
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You may add a passage of up to five words as a Front-Cover Text, and a |
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passage of up to 25 words as a Back-Cover Text, to the end of the list |
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of Cover Texts in the Modified Version. Only one passage of |
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Front-Cover Text and one of Back-Cover Text may be added by (or |
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through arrangements made by) any one entity. If the Document already |
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includes a cover text for the same cover, previously added by you or |
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by arrangement made by the same entity you are acting on behalf of, |
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you may not add another; but you may replace the old one, on explicit |
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permission from the previous publisher that added the old one. |
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|
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The author(s) and publisher(s) of the Document do not by this License |
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give permission to use their names for publicity for or to assert or |
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imply endorsement of any Modified Version. |
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@sp 1 |
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@item |
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COMBINING DOCUMENTS |
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|
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You may combine the Document with other documents released under this |
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License, under the terms defined in section 4 above for modified |
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versions, provided that you include in the combination all of the |
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Invariant Sections of all of the original documents, unmodified, and |
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list them all as Invariant Sections of your combined work in its |
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license notice. |
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|
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The combined work need only contain one copy of this License, and |
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multiple identical Invariant Sections may be replaced with a single |
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copy. If there are multiple Invariant Sections with the same name but |
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different contents, make the title of each such section unique by |
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adding at the end of it, in parentheses, the name of the original |
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author or publisher of that section if known, or else a unique number. |
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Make the same adjustment to the section titles in the list of |
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Invariant Sections in the license notice of the combined work. |
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|
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In the combination, you must combine any sections entitled ``History'' |
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in the various original documents, forming one section entitled |
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``History''; likewise combine any sections entitled ``Acknowledgements'', |
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and any sections entitled ``Dedications.'' You must delete all sections |
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entitled ``Endorsements.'' |
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@sp 1 |
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@item |
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COLLECTIONS OF DOCUMENTS |
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|
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You may make a collection consisting of the Document and other documents |
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released under this License, and replace the individual copies of this |
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License in the various documents with a single copy that is included in |
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the collection, provided that you follow the rules of this License for |
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verbatim copying of each of the documents in all other respects. |
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|
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You may extract a single document from such a collection, and distribute |
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it individually under this License, provided you insert a copy of this |
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License into the extracted document, and follow this License in all |
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other respects regarding verbatim copying of that document. |
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@sp 1 |
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@item |
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AGGREGATION WITH INDEPENDENT WORKS |
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|
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A compilation of the Document or its derivatives with other separate |
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and independent documents or works, in or on a volume of a storage or |
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distribution medium, does not as a whole count as a Modified Version |
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of the Document, provided no compilation copyright is claimed for the |
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compilation. Such a compilation is called an ``aggregate'', and this |
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License does not apply to the other self-contained works thus compiled |
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with the Document, on account of their being thus compiled, if they |
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are not themselves derivative works of the Document. |
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|
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If the Cover Text requirement of section 3 is applicable to these |
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copies of the Document, then if the Document is less than one quarter |
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of the entire aggregate, the Document's Cover Texts may be placed on |
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covers that surround only the Document within the aggregate. |
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Otherwise they must appear on covers around the whole aggregate. |
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@sp 1 |
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@item |
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TRANSLATION |
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|
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Translation is considered a kind of modification, so you may |
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distribute translations of the Document under the terms of section 4. |
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Replacing Invariant Sections with translations requires special |
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permission from their copyright holders, but you may include |
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translations of some or all Invariant Sections in addition to the |
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original versions of these Invariant Sections. You may include a |
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translation of this License provided that you also include the |
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original English version of this License. In case of a disagreement |
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between the translation and the original English version of this |
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License, the original English version will prevail. |
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@sp 1 |
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@item |
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TERMINATION |
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|
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You may not copy, modify, sublicense, or distribute the Document except |
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as expressly provided for under this License. Any other attempt to |
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copy, modify, sublicense or distribute the Document is void, and will |
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automatically terminate your rights under this License. However, |
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parties who have received copies, or rights, from you under this |
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License will not have their licenses terminated so long as such |
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parties remain in full compliance. |
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@sp 1 |
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@item |
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FUTURE REVISIONS OF THIS LICENSE |
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|
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The Free Software Foundation may publish new, revised versions |
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of the GNU Free Documentation License from time to time. Such new |
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versions will be similar in spirit to the present version, but may |
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differ in detail to address new problems or concerns. See |
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http://www.gnu.org/copyleft/. |
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|
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Each version of the License is given a distinguishing version number. |
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If the Document specifies that a particular numbered version of this |
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License ``or any later version'' applies to it, you have the option of |
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following the terms and conditions either of that specified version or |
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of any later version that has been published (not as a draft) by the |
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Free Software Foundation. If the Document does not specify a version |
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number of this License, you may choose any version ever published (not |
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as a draft) by the Free Software Foundation. |
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|
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@end enumerate |
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|
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@unnumberedsec ADDENDUM: How to use this License for your documents |
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|
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To use this License in a document you have written, include a copy of |
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the License in the document and put the following copyright and |
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license notices just after the title page: |
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|
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@smallexample |
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@group |
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Copyright (C) @var{year} @var{your name}. |
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Permission is granted to copy, distribute and/or modify this document |
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under the terms of the GNU Free Documentation License, Version 1.1 |
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or any later version published by the Free Software Foundation; |
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with the Invariant Sections being @var{list their titles}, with the |
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Front-Cover Texts being @var{list}, and with the Back-Cover Texts being @var{list}. |
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A copy of the license is included in the section entitled "GNU |
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Free Documentation License." |
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@end group |
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@end smallexample |
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|
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If you have no Invariant Sections, write ``with no Invariant Sections'' |
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instead of saying which ones are invariant. If you have no |
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Front-Cover Texts, write ``no Front-Cover Texts'' instead of |
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``Front-Cover Texts being @var{list}''; likewise for Back-Cover Texts. |
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|
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If your document contains nontrivial examples of program code, we |
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recommend releasing these examples in parallel under your choice of |
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free software license, such as the GNU General Public License, |
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to permit their use in free software. |
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