Yoneda embedding

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Yoneda embedding

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Named after the Japanese mathematician Nobuo Yoneda (1930–1996).

Yoneda embedding (plural Yoneda embeddings)

1. (category theory) An embedding of a category ${\displaystyle {\mathcal {C}}}$ within the category of functors from ${\displaystyle {\mathcal {C}}}$ to the category of sets. Such an embedding is effected by a Yoneda functor.