米田の補題
1. Yoneda lemmaIn mathematics, specifically in category theory, the Yoneda lemma is an abstract result on functors of the type morphisms into a fixed object. It is a vast generalisation of Cayley's theorem from group theory (viewing a group as a particular kind of category with just one object). It allows the embedding of any category into a category of functors (contravariant set-valued functors) defined on that category.
Read “Yoneda lemma” on English Wikipedia
Read “米田の補題” on Japanese Wikipedia
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Read “Yoneda lemma” on English Wikipedia
Read “米田の補題” on Japanese Wikipedia
Read “Yoneda lemma” on DBpedia
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