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	<id>https://www.vigyanwiki.in/index.php?action=history&amp;feed=atom&amp;title=Template%3ACategory_theory</id>
	<title>Template:Category theory - Revision history</title>
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	<updated>2026-05-23T17:29:37Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.vigyanwiki.in/index.php?title=Template:Category_theory&amp;diff=43555&amp;oldid=prev</id>
		<title>Indicwiki: 1 revision imported from :alpha:Template:Category_theory</title>
		<link rel="alternate" type="text/html" href="https://www.vigyanwiki.in/index.php?title=Template:Category_theory&amp;diff=43555&amp;oldid=prev"/>
		<updated>2022-12-15T03:38:24Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported from &lt;a href=&quot;https://alpha.indicwiki.in/index.php?title=Template:Category_theory&quot; class=&quot;extiw&quot; title=&quot;alpha:Template:Category theory&quot;&gt;alpha:Template:Category_theory&lt;/a&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 09:08, 15 December 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en-GB&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Indicwiki</name></author>
	</entry>
	<entry>
		<id>https://www.vigyanwiki.in/index.php?title=Template:Category_theory&amp;diff=43554&amp;oldid=prev</id>
		<title>alpha&gt;Sarika: Created page with &quot;{{Navbox with collapsible groups | name = Category theory | state = uncollapsed | bodyclass = hlist | title = Category theory | image = File:Commutative diagram for morp...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.vigyanwiki.in/index.php?title=Template:Category_theory&amp;diff=43554&amp;oldid=prev"/>
		<updated>2022-12-14T10:28:49Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{Navbox with collapsible groups | name = Category theory | state = uncollapsed | bodyclass = hlist | title = &lt;a href=&quot;/index.php?title=Category_theory&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Category theory (page does not exist)&quot;&gt;Category theory&lt;/a&gt; | image = File:Commutative diagram for morp...&amp;quot;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:58, 14 December 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l123&quot;&gt;Line 123:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 123:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;}}&amp;lt;noinclude&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;}}&amp;lt;noinclude&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Documentation|}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Documentation|}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/noinclude&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/noinclude&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category: Templates Vigyan Ready]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>alpha&gt;Sarika</name></author>
	</entry>
	<entry>
		<id>https://www.vigyanwiki.in/index.php?title=Template:Category_theory&amp;diff=30349&amp;oldid=prev</id>
		<title>Admin: 1 revision imported</title>
		<link rel="alternate" type="text/html" href="https://www.vigyanwiki.in/index.php?title=Template:Category_theory&amp;diff=30349&amp;oldid=prev"/>
		<updated>2022-12-04T09:59:10Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:29, 4 December 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en-GB&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Admin</name></author>
	</entry>
	<entry>
		<id>https://www.vigyanwiki.in/index.php?title=Template:Category_theory&amp;diff=30348&amp;oldid=prev</id>
		<title>wikipedia&gt;Izno: rm non-specific and non-Wikipedia below links</title>
		<link rel="alternate" type="text/html" href="https://www.vigyanwiki.in/index.php?title=Template:Category_theory&amp;diff=30348&amp;oldid=prev"/>
		<updated>2020-09-27T14:57:28Z</updated>

		<summary type="html">&lt;p&gt;rm non-specific and non-Wikipedia below links&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Navbox with collapsible groups&lt;br /&gt;
| name = Category theory&lt;br /&gt;
| state = uncollapsed&lt;br /&gt;
| bodyclass = hlist&lt;br /&gt;
| title = [[Category theory]]&lt;br /&gt;
| image = [[File:Commutative diagram for morphism.svg|60px|alt=A simple triangular commutative diagram|link=Commutative_diagram]]&lt;br /&gt;
| groupstyle = background:#e5e5ff;&lt;br /&gt;
| selected = {{{selected|{{{1|}}}}}}&lt;br /&gt;
&lt;br /&gt;
| group1 = Key concepts&lt;br /&gt;
| state1 = uncollapsed&lt;br /&gt;
| content1 = {{Navbox|child&lt;br /&gt;
| group1 = Key concepts&lt;br /&gt;
| list1 =&lt;br /&gt;
* [[Category (mathematics)|Category]]&lt;br /&gt;
&amp;lt;!-- These are alphabetical --&amp;gt;&lt;br /&gt;
* [[Adjoint functors]]&lt;br /&gt;
* [[Cartesian closed category|CCC]]&lt;br /&gt;
* [[Commutative diagram]]&lt;br /&gt;
* [[Concrete category]]&lt;br /&gt;
* [[End (category theory)|End]]&lt;br /&gt;
* [[Exponential object|Exponential]]&lt;br /&gt;
* [[Functor]]&lt;br /&gt;
* [[Kan extension]]&lt;br /&gt;
* [[Morphism]]&lt;br /&gt;
* [[Natural transformation]]&lt;br /&gt;
* [[Universal property]]&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!-- These are ordered in increasing complexity --&amp;gt;&lt;br /&gt;
&amp;lt;!-- This is subjective, but most books present them in this order --&amp;gt;&lt;br /&gt;
| group2 = [[Universal construction|Universal constructions]]&lt;br /&gt;
| list2 = {{Navbox|subgroup&lt;br /&gt;
| group1 = [[Limit (category theory)|Limits]]&lt;br /&gt;
| list1 = &lt;br /&gt;
* [[Initial and terminal objects|Terminal objects]]&lt;br /&gt;
* [[Product (category theory)|Products]]&lt;br /&gt;
* [[Equaliser (mathematics)|Equalizers]]&lt;br /&gt;
**[[Kernel (category theory)|Kernels]]&lt;br /&gt;
* [[Pullback (category theory)|Pullbacks]]&lt;br /&gt;
* [[Inverse limit]]&lt;br /&gt;
| group2 = [[Colimit|Colimits]]&lt;br /&gt;
| list2 = &lt;br /&gt;
* [[Initial and terminal objects|Initial objects]]&lt;br /&gt;
* [[Coproduct|Coproducts]]&lt;br /&gt;
* [[Coequalizer|Coequalizers]]&lt;br /&gt;
**[[Cokernel|Cokernels and quotients]]&lt;br /&gt;
* [[Pushout (category theory)|Pushout]]&lt;br /&gt;
* [[Direct limit]]&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
| group3 = [[Algebraic category|Algebraic categories]]&lt;br /&gt;
| list3 = &lt;br /&gt;
&amp;lt;!-- These in order of increasing complexity --&amp;gt;&lt;br /&gt;
* [[Category of sets|Sets]]&lt;br /&gt;
* [[Category of relations|Relations]]&lt;br /&gt;
* [[Category of magmas|Magmas]]&lt;br /&gt;
* [[Category of groups|Groups]]&lt;br /&gt;
* [[Category of abelian groups|Abelian groups]]&lt;br /&gt;
* [[Category of rings|Rings]] ([[Category of rings#Category of fields|Fields]])&lt;br /&gt;
* [[Category of modules|Modules]] ([[Category of modules#Example: the category of vector spaces|Vector spaces]])&lt;br /&gt;
&lt;br /&gt;
| group4 = Constructions on categories&lt;br /&gt;
| list4 = &lt;br /&gt;
&amp;lt;!-- These are alphabetical --&amp;gt;&lt;br /&gt;
* [[Free category]]&lt;br /&gt;
* [[Functor category]]&lt;br /&gt;
* [[Kleisli category]]&lt;br /&gt;
* [[Opposite category]]&lt;br /&gt;
* [[Quotient category]]&lt;br /&gt;
* [[Product category]]&lt;br /&gt;
* [[Comma category]]&lt;br /&gt;
* [[Subcategory]]&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
| group2 = [[Higher category theory]]&lt;br /&gt;
| list2 =&lt;br /&gt;
* {{Navbox|child&lt;br /&gt;
| group1 = Key concepts&lt;br /&gt;
| state1 = collapsed&lt;br /&gt;
| list1 =&lt;br /&gt;
&amp;lt;!-- These are alphabetical --&amp;gt;&lt;br /&gt;
* [[Categorification]]&lt;br /&gt;
* [[Enriched category]]&lt;br /&gt;
* [[Higher-dimensional algebra]]&lt;br /&gt;
* [[Homotopy hypothesis]]&lt;br /&gt;
* [[Model category]]&lt;br /&gt;
* [[Simplex category]]&lt;br /&gt;
* [[String diagram]]&lt;br /&gt;
* [[Topos]]&lt;br /&gt;
&lt;br /&gt;
| group2 = n-categories&lt;br /&gt;
| list2 = {{Navbox|child&lt;br /&gt;
| group1 = [[Weak n-category|Weak {{var|n}}-categories]]&lt;br /&gt;
| list1 = &lt;br /&gt;
* [[Bicategory]] ([[Pseudo-functor|pseudofunctor]])&lt;br /&gt;
* [[Tricategory]]&lt;br /&gt;
* [[Tetracategory]]&lt;br /&gt;
* [[Quasi-category|Kan complex]]&lt;br /&gt;
* [[∞-groupoid]]&lt;br /&gt;
* [[∞-topos]]&lt;br /&gt;
| group2 = [[Strict n-category|Strict {{var|n}}-categories]]&lt;br /&gt;
| list2 =&lt;br /&gt;
* [[Strict 2-category|2-category]] ([[2-functor]])&lt;br /&gt;
* [[3-category]]&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
| group3 = [[Categorification|Categorified]] concepts&lt;br /&gt;
| list3 =&lt;br /&gt;
* [[2-group]]&lt;br /&gt;
* [[2-ring]]&lt;br /&gt;
* [[En-ring|''E&amp;lt;sub&amp;gt;n&amp;lt;/sub&amp;gt;''-ring]]&lt;br /&gt;
* ([[Traced monoidal category|Traced]])([[Symmetric monoidal category|Symmetric]]) [[monoidal category]]&lt;br /&gt;
* [[N-group (category theory)|n-group]]&lt;br /&gt;
* [[n-monoid]]&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
| belowstyle=font-weight:bold;&lt;br /&gt;
| below = &lt;br /&gt;
* {{Icon|Category}} [[:Category:Category theory|Category]]&lt;br /&gt;
* {{icon|LIST}} [[Outline of category theory|Outline]]&lt;br /&gt;
* {{icon|LIST}} [[Glossary of category theory|Glossary]]&lt;br /&gt;
&lt;br /&gt;
}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
{{Documentation|}}&lt;br /&gt;
&amp;lt;/noinclude&amp;gt;&lt;/div&gt;</summary>
		<author><name>wikipedia&gt;Izno</name></author>
	</entry>
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