In mathematics, a category is a collection of "objects" that are linked by "arrows". A category has two basic properties: the ability to compose the arrows ... Concrete category · Category of sets · Class (set theory) |
Category theory is a general theory of mathematical structures and their relations. It was introduced by Samuel Eilenberg and Saunders Mac Lane in the middle of ... |
A category consists of three things: a collection of objects, for each pair of objects a collection of morphisms (sometimes call "arrows") from one to another, ... |
23 янв. 2017 г. · Category theory takes a bird's eye view of mathematics. From high in the sky, details become invisible, but we can spot patterns that were ... |
| Категория |  |
В математике категория — это набор «объектов», связанных «стрелками». У категории есть два основных свойства: возможность ассоциативно составлять стрелки и наличие стрелки идентичности для каждого объекта. Простым примером является категория... Википедия (Английский язык)
18 нояб. 2023 г. · A category is a quiver (a directed graph with multiple edges) with a rule saying how to compose two edges that fit together to get a new edge. |
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