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bn:01081942n
Noun Named Entity
JA
ニールセン＝シュライヤーの定理  ニールセン–シュライヤーの定理  ニールセン–シュライヤーの定理
EN
In group theory, a branch of mathematics, the Nielsen–Schreier theorem states that every subgroup of a free group is itself free. Wikipedia
Relations
Sources
IS A
定理
PART OF
群論
NAMED AFTER
Otto Schreier
Jakob Nielsen
STUDIED BY
圏論
Wikidata
JA
ニールセン＝シュライヤーの定理
Wikidata Alias
JA
ニールセン–シュライヤーの定理, ニールセン–シュライヤーの定理

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