Five lemma
Lemma in category theory about commutative diagrams
In mathematics, especially homological algebra and other applications of abelian category theory, the five lemma is an important and widely used lemma about commutative diagrams. The five lemma is valid for all abelian categories, as well as the category of groups.
Nº Q1479523 ★
Common · Knowledge
Five lemma
Lemma in category theory about commutative diagrams
In mathematics, especially homological algebra and other applications of abelian category theory, the five lemma is an important and widely used lemma about commutative diagrams. The five lemma is valid for all abelian categories, as well as the category of groups.
From Wikipedia
In mathematics, especially homological algebra and other applications of abelian category theory, the five lemma is an important and widely used lemma about commutative diagrams. The five lemma is valid for all abelian categories, as well as the category of groups. The five lemma can be thought of as a combination of two other theorems, the four lemmas, which are dual to each other.
Text: Wikipédia, CC BY-SA 4.0. ·
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