In category theory, an end of a functor S : C o p × C → X {\displaystyle S:\mathbf {C} ^{\mathrm {op} }\times \mathbf {C} \to \mathbf {X} } is a universal...
5 KB (847 words) - 19:22, 27 June 2025
category theory, a branch of mathematics, a monad is a triple ( T , η , μ ) {\displaystyle (T,\eta ,\mu )} consisting of a functor T from a category to...
31 KB (4,489 words) - 03:10, 2 June 2025
Category theory is a general theory of mathematical structures and their relations. It was introduced by Samuel Eilenberg and Saunders Mac Lane in the...
34 KB (3,910 words) - 12:43, 19 June 2025
In mathematics, higher category theory is the part of category theory at a higher order, which means that some equalities are replaced by explicit arrows...
9 KB (1,016 words) - 14:35, 30 April 2025
object. A simple example is the category of sets, whose objects are sets and whose arrows are functions. Category theory is a branch of mathematics that...
21 KB (2,525 words) - 18:54, 19 March 2025
In category theory, a branch of mathematics, a pullback (also called a fiber product, fibre product, fibered product or Cartesian square) is the limit...
16 KB (2,061 words) - 08:26, 24 June 2025
In category theory, the product of two (or more) objects in a category is a notion designed to capture the essence behind constructions in other areas...
14 KB (2,401 words) - 21:09, 27 March 2025
In category theory, a branch of mathematics, a section is a right inverse of some morphism. Dually, a retraction is a left inverse of some morphism. In...
6 KB (794 words) - 07:10, 3 July 2025
In category theory, a branch of mathematics, the abstract notion of a limit captures the essential properties of universal constructions such as products...
27 KB (4,333 words) - 16:33, 22 June 2025
In category theory, a branch of mathematics, a pushout (also called a fibered coproduct or fibered sum or cocartesian square or amalgamated sum) is the...
13 KB (1,984 words) - 23:29, 23 June 2025
In category theory, a branch of mathematics, a presheaf on a category C {\displaystyle C} is a functor F : C o p → S e t {\displaystyle F\colon C^{\mathrm...
8 KB (1,272 words) - 10:40, 28 April 2025
Applied category theory is an academic discipline in which methods from category theory are used to study other fields including but not limited to computer...
8 KB (683 words) - 18:20, 25 June 2025
In category theory, a branch of mathematics, duality is a correspondence between the properties of a category C and the dual properties of the opposite...
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Applied category theory Category of sets Concrete category Category of vector spaces Category of graded vector spaces Category of chain complexes Category of...
5 KB (402 words) - 15:20, 29 March 2024
a glossary of properties and concepts in category theory in mathematics. (see also Outline of category theory.) Notes on foundations: In many expositions...
78 KB (11,821 words) - 15:15, 3 July 2025
Adjoint functors (redirect from Unit (category theory))
In mathematics, specifically category theory, adjunction is a relationship that two functors may exhibit, intuitively corresponding to a weak form of...
64 KB (10,260 words) - 08:58, 28 May 2025
Functor (redirect from Functor (category theory))
In mathematics, specifically category theory, a functor is a mapping between categories. Functors were first considered in algebraic topology, where algebraic...
24 KB (3,550 words) - 22:28, 25 April 2025
In mathematics, the Elementary Theory of the Category of Sets or ETCS is a set of axioms for set theory proposed by William Lawvere in 1964. Although it...
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general is in category theory. The algebraic objects to which representation theory applies can be viewed as particular kinds of categories, and the representations...
56 KB (7,331 words) - 19:13, 5 June 2025
This is a timeline of category theory and related mathematics. Its scope ("related mathematics") is taken as: Categories of abstract algebraic structures...
87 KB (273 words) - 12:39, 6 May 2025
end or ending in Wiktionary, the free dictionary. End, END, Ending, or ENDS may refer to: End (category theory) End (topology) End (graph theory) End...
3 KB (372 words) - 17:01, 20 June 2025
Coproduct (redirect from Coproduct (category theory))
In category theory, the coproduct, or categorical sum, is a construction which includes as examples the disjoint union of sets and of topological spaces...
12 KB (2,130 words) - 16:31, 3 May 2025
Natural transformation (redirect from Natural (category theory))
In category theory, a branch of mathematics, a natural transformation provides a way of transforming one functor into another while respecting the internal...
35 KB (5,962 words) - 07:43, 5 June 2025
specifically category theory, a quasi-category (also called quasicategory, weak Kan complex, inner Kan complex, infinity category, ∞-category, Boardman complex...
22 KB (3,351 words) - 12:35, 11 June 2025
In category theory, a branch of mathematics, a PROP is a symmetric strict monoidal category whose objects are the natural numbers n identified with the...
7 KB (1,033 words) - 03:19, 6 June 2025
In category theory, a category is Cartesian closed if, roughly speaking, any morphism defined on a product of two objects can be naturally identified...
18 KB (2,611 words) - 01:50, 26 March 2025
In category theory, a branch of mathematics, the center (or Drinfeld center, after Soviet-American mathematician Vladimir Drinfeld) is a variant of the...
7 KB (1,137 words) - 21:01, 23 February 2023
Morphism (redirect from Morphism (category theory))
In mathematics, a morphism is a concept of category theory that generalizes structure-preserving maps such as homomorphism between algebraic structures...
13 KB (1,664 words) - 22:58, 3 July 2025
tensor category (also called a modular fusion category) is a type of tensor category that plays a role in the areas of topological quantum field theory, conformal...
31 KB (4,088 words) - 23:14, 19 June 2025
In category theory, a branch of mathematics, an enriched category generalizes the idea of a category by replacing hom-sets with objects from a general...
15 KB (2,027 words) - 00:16, 29 January 2025