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	<title>Logic File System - Revision history</title>
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	<updated>2026-05-07T23:23:14Z</updated>
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		<title>imported&gt;Citation bot: Alter: title. | Use this bot. Report bugs. | Suggested by BrownHairedGirl | #UCB_webform 1600/3832</title>
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		<updated>2022-08-22T06:59:52Z</updated>

		<summary type="html">&lt;p&gt;Alter: title. | &lt;a href=&quot;/wiki143/index.php?title=WP:UCB&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;WP:UCB (page does not exist)&quot;&gt;Use this bot&lt;/a&gt;. &lt;a href=&quot;/wiki143/index.php?title=WP:DBUG&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;WP:DBUG (page does not exist)&quot;&gt;Report bugs&lt;/a&gt;. | Suggested by BrownHairedGirl | #UCB_webform 1600/3832&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;The &amp;#039;&amp;#039;&amp;#039;Logic File System&amp;#039;&amp;#039;&amp;#039; is a research file system which replaces pathnames with expressions in [[propositional logic]].  It allows file metadata to be queried with a superset of the [[Boolean algebra (logic)|Boolean]] syntax commonly used in modern [[search engine]]s.&lt;br /&gt;
&lt;br /&gt;
The actual name is the &amp;#039;&amp;#039;&amp;#039;Logic Information Systems File System&amp;#039;&amp;#039;&amp;#039;, and is abbreviated &amp;#039;&amp;#039;&amp;#039;LISFS&amp;#039;&amp;#039;&amp;#039; to avoid confusion with the [[log-structured file system]] (LFS). An implementation of the Logic File System is available at the LISFS website.&amp;lt;ref&amp;gt;{{cite web|url=http://lfs.irisa.fr |title=The Logical Information Systems web page |accessdate=March 13, 2006 |url-status=dead |archiveurl=https://web.archive.org/web/20060510035848/http://lfs.irisa.fr/ |archivedate=May 10, 2006 }}&amp;lt;/ref&amp;gt;&lt;br /&gt;
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It is intended to be used on Unix-like operating systems and is a bit difficult to install, as it needs several non-standard [[OCaml]] modules.&lt;br /&gt;
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== References ==&lt;br /&gt;
{{reflist}}&lt;br /&gt;
;Notes&lt;br /&gt;
* Ferré, Sébastian and Ridoux, Olivier (2000). &amp;quot;[http://www.irisa.fr/LIS/slides/dood2000.pdf A File System Based on Concept Analysis].&amp;quot;&lt;br /&gt;
* Padioleau, Yoann and Ridoux, Olivier (2003). &amp;quot;[http://www.usenix.org/events/usenix03/tech/padioleau.html A Logic File System].&amp;quot;&lt;br /&gt;
* Padioleau, Yoann and Ridoux, Olivier (2005). &amp;quot;[http://www.usenix.org/events/usenix05/tech/general/padioleau.html A Parts of File File System].&amp;quot;&lt;br /&gt;
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== External links ==&lt;br /&gt;
* {{webarchive |url=https://web.archive.org/web/20090430140852/http://lfs.irisa.fr/ |date=April 30, 2009 |title=The Logical Information Systems }}&lt;br /&gt;
* [https://web.archive.org/web/20110823233241/http://padator.org/wiki/wiki-LFS/doku.php LFS new homepage]&lt;br /&gt;
&lt;br /&gt;
[[Category:Computer file systems]]&lt;br /&gt;
[[Category:Semantic file systems]]&lt;br /&gt;
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{{operating-system-stub}}&lt;/div&gt;</summary>
		<author><name>imported&gt;Citation bot</name></author>
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