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bn:01417918n
Noun Concept
JA
2-群
EN
In mathematics, particularly the branch called category theory, a 2-group is a groupoid with a way to multiply objects, making it resemble a group. Wikipedia
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IS A
カテゴリ化
モノイド圏
NAMED AFTER
群
STUDIED BY
高次圏論
Wikidata
JA
2-群

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