Last Updated
：2025/11/24
Yoneda embedding
Noun
Japanese Meaning
与えられた圏 C を、C から集合の圏への関手全体の圏の中に、Yoneda 関手によって埋め込む概念。圏論において、Yoneda embedding は圏をその内部の関手の圏に忠実に反映させる手法を指す。
（ plural ）
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(category theory) An embedding of a category 𝒞 within the category of functors from 𝒞 to the category of sets. Such an embedding is effected by a Yoneda functor.
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Yoneda embedding
Understanding the Yoneda embedding is essential for many constructions in category theory.
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Understanding the Yoneda embedding is essential for many constructions in category theory.
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