வார்ப்புரு:பகுப்பு இடைவெட்டு
&lt;span class=&quot;plainlinks&quot;&gt;[{{fullurl:Special:Search|search={{urlencode:incategory:&quot;{{{2}}}&quot;}}{{#if:{{{3|}}}|{{urlencode: incategory:&quot;{{{3}}}&quot;}}}}{{#if:{{{4|}}}|{{urlencode: incategory:&quot;{{{4}}}&quot;}}}}{{#if:{{{5|}}}|{{urlencode: incategory:&quot;{{{5}}}&quot;}}}}{{#if:{{{6|}}}|{{urlencode: incategory:&quot;{{{6}}}&quot;}}}}{{#if:{{{7|}}}|{{urlencode: -incategory:&quot;{{{7}}}&quot;}}}}}} {{{1}}}]&lt;/span&gt;&lt;noinclude&gt;
 &lt;br style=&quot;clear: both;&quot; /&gt;
 
 Please note that there is a slight delay from when an article has been categorized (or uncategorized) until you can see the effect with the &quot;incategory&quot;-function.
 
 == Use ==
 &lt;pre&gt;
 {{Category intersection|Link text displayed|Category 1|Category 2|Category 3|Category 4|Category 5|Category 6}}
 &lt;/pre&gt;
 
 === Explanation ===
 *Link text displayed = What the link will look like when displayed. For example &quot;Novels awarded both the Hugo Award and the Nebula Award for Best Novel&quot;.
 *Category 1 = Name on the first category. For example &quot;Hugo Award for Best Novel-winning works&quot;.
 *Category 2 = Name on the second category. For example &quot;Nebula Award for Best Novel-winning works&quot;.
 *A maximum of five categories can be stated.
 *The sixth category is an excluding category
 
 === Example ===
 *{{Category intersection|Novels awarded both the Hugo Award and the Nebula Award for Best Novel|Hugo Award for Best Novel-winning works|Nebula Award for Best Novel-winning works}} generates a list of articles that are categorized into ''both'' &quot;[[:Category:Hugo Award for Best Novel-winning works]]&quot; and &quot;[[:Category:Nebula Award for Best Novel-winning works]]&quot; (not ''either'') and thus a list of novels that won both the Hugo and the Nebula award. Syntax: &lt;nowiki&gt;{{Category intersection|Novels awarded both the Hugo Award and the Nebula Award for Best Novel|Hugo Award for Best Novel-winning works|Nebula Award for Best Novel-winning works}}&lt;/nowiki&gt; 
 *{{Category intersection|Songs written jointly by Lady Gaga and RedOne|Songs written by Lady Gaga|Songs written by RedOne}} (and {{Category intersection|Songs written by Lady Gaga but not RedOne|Songs written by Lady Gaga|||||Songs written by RedOne}} with syntax &lt;nowiki&gt;{{Category intersection|Songs written by Lady Gaga but not RedOne|Songs written by Lady Gaga|||||Songs written by RedOne}}&lt;/nowiki&gt;)
 *{{Category intersection|New York University alumni born in 1965|New York University alumni|1965 births}} (but since the category New York University alumni is not fully populated, the example excludes {{Category intersection|New York University School of Law alumni born in 1965|New York University School of Law alumni|1965 births}} and others. A fully populated New York University alumni would return a list of all alumnis)
 
 == Rationale ==
 *To reduce the need to update lists like [[List of joint winners of the Hugo and Nebula awards]]
 *To ease, and illustrate the need for, the move towards [[Wikipedia:Category intersection|fully populated primary categories]]. The general rule should be: '''If a category can be completely and totally expressed as the intersection of other categories, it is not a primary category''' and its content should be generated dynamically instead. For example, the content in [[:Category:American film directors]] can be defined as the intersection of [[:Category:Film directors]] and [[:Category:American people]]. Another example: Had the categories [[:Category:Ornithological organizations]] and [[:Category:1994 establishments]] been fully populated, a search of the intersection of the two would have returned a list longer than the current {{Category intersection|Ornithological organizations established in 1994|1994 establishments|Ornithological organizations}} and not leave out for example [[Southern Oceans Seabird Study Association]] which meet both criteria but is categorized in [[:Category:Ornithological organisations in Australia]], a subcategory to Category:Ornithological organizations.
 *To illustrate the need for a powerful, intuitive, easily accessible, easy to use category intersection tool integrated in Mediawiki to facilitate and encourage users retrieving and discovering information by basic data mining. Hopefully this will also lead to increased public awareness of, and knowledge about, data mining. And let's be honest: It would be crazy fun too!