Is it legal to quote extracts from the GNU GPLv3 license on the Stack Exchange network?
<p>The GNU GPLv3 License is auto-licensed.</p>

<p>Content posted to the Stack Exchange network is licensed by CC BY-SA 3.0.</p>

<p>GNU is viral copyleft and cannot be re-licensed to CC, and also requires that <em>changing</em> of the license is <em>not allowed</em>.</p>

<p><strong>Is it legal to quote extracts from the GNU GPLv3 license (which is licensed by the GNU GPLv3 license) on the Stack Exchange network?</strong></p>

<p>Yes, to the same extent that it is legal to quote extracts from any text without an explicit license to do so. If the usage of the excerpt qualifies as fair use, it can be done without a license.</p>

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