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Yoneda embedding

Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Given category , a Yoneda embedding for this category is a functor such that for any object A in , and for any morphism in , where the natural transformation η has components . Then . Otherwise, it is a functor such that and for any in , where η has components . Then .

Etymologies

Named after the Japanese mathematician Nobuo Yoneda. (Wiktionary)

Examples

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