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horseshoe lemma · Vinony

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EntityQ5906080· pop 5· linked from 3 articles

horseshoe lemma

algebraic statement

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via Wikidata sitelinks · CC0

Connections

International Standard Book Number

mathematical induction

Categories

Homological algebra Lemmas in category theory

Sources

wikipedia.externallinksexternallink

Henri Cartan

Entity

homological algebra

Samuel Eilenberg

commutative diagram

abelian category

opposite category

projective object

injective object

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