dual category
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Dual (category theory) — In category theory, a branch of mathematics, duality is a correspondence between properties of a category C and so called dual properties of the opposite category Cop. Given a statement regarding the category C, by interchanging the source and… … Wikipedia
Dual — may refer to: Dual (mathematics), a notion of paired concepts that mirror one another Dual (category theory), a formalization of mathematical duality . . . see more cases in Category:Duality theories Dual (grammatical number), a… … Wikipedia
Category theory — In mathematics, category theory deals in an abstract way with mathematical structures and relationships between them: it abstracts from sets and functions to objects and morphisms . Categories now appear in most branches of mathematics and in… … Wikipedia
Category (mathematics) — In mathematics, a category is an algebraic structure that comprises objects that are linked by arrows . A category has two basic properties: the ability to compose the arrows associatively and the existence of an identity arrow for each object. A … Wikipedia
Dual (grammatical number) — Dual (abbreviated du) is a grammatical number that some languages use in addition to singular and plural. When a noun or pronoun appears in dual form, it is interpreted as referring to precisely two of the entities (objects or persons) identified … Wikipedia
Dual-listed company — Dual listed companies should not be confused with cross listed companies, where the stock of one company is listed on more than one stock exchange. A dual listed company or DLC is a corporate structure in which two corporations function as a… … Wikipedia
Dual-flashlight plot — showing a high throughput screening dataset. In statistics, a dual flashlight plot is a type of scatter plot in which the standardized mean (SMCV) is plotted against the mean of a contrast variable representing a comparison of interest .[1] The… … Wikipedia
dual number — n. a grammatical number category referring to exactly two persons or things: distinguished by inflection, in such languages as classical Greek and Old English, from singular and plural * * * … Universalium
dual number — n. a grammatical number category referring to exactly two persons or things: distinguished by inflection, in such languages as classical Greek and Old English, from singular and plural … English World dictionary
Dual object — In category theory, a branch of mathematics, it is possible to define a concept of dual object generalizing the concept of dual space in linear algebra. A category in which each object has a dual is called autonomous or rigid. Contents 1… … Wikipedia
Dual clutch transmission — Transmission types Manual Sequential manual Non synchronous Preselector Automatic Manumatic Semi automatic Electrohydraulic … Wikipedia
