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GNU-style "copyleft" licensing is an important defense against the threat of software patents.
DotGNU applications and examples are generally available under the terms of the GNU General Public License (GNU GPL).
DotGNU libraries are generally available under either the GNU Lesser General Public License (GNU LGPL) or the GPL plus the following linking exception:
As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.
DotGNU documentation is generally available under the terms of the GNU Free Documentation License (GNU FDL), with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
See the individual component packages for further information on licensing conditions.
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