bn:00219527n
Noun Concept
Categories: Functors
EN
functor  bifunctor  Category homomorphism  Cofunctor  constant functor
EN
In mathematics, specifically category theory, a functor is a mapping between categories. Wikipedia
category theory
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EN
In mathematics, specifically category theory, a functor is a mapping between categories. Wikipedia
In category theory, a mapping between categories that preserves their structure Wikidata
A special type of mapping between categories. OmegaWiki
A category homomorphism; a morphism from a source category to a target category which maps objects to objects and arrows to arrows, in such a way as to preserve domains and codomains (of the arrows) as well as composition and identities. Wiktionary
EN
In the category of categories, C A T , the objects are categories and the morphisms are functors. Wiktionary