category — категория

разряд
класс

Значения

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n ru A group, often named or numbered, to which items are assigned based on similarity or defined criteria.
I wouldn't put this book in the same category as the author's first novel.
This steep and dangerous climb belongs to the most difficult category.
n ru A collection of objects, together with a transitively closed collection of composable arrows between them, such that every object has an identity arrow, and such that arrow composition is associative.
Just as a monoid consists of an underlying set with a binary operation "on top of it" which is closed, associative and with an identity, a category consists of an underlying digraph with an arrow composition operation "on top of it" which is transitively closed, associative, and with an identity at each object. In fact, a category's composition operation, when restricted to a single one of its objects, turns that object's set of arrows into a monoid.
One well-known category has sets as objects and functions as arrows.

Формы слова

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