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bn:01081942n
Noun Named Entity
IT
nielsen-schreier teorema
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
teorema
PART OF
teoria dei gruppi
NAMED AFTER
Otto Schreier
Jakob Nielsen
STUDIED BY
teoria delle categorie
Wikipedia Translations
IT
nielsen-schreier teorema

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