Linked from

The 4 pages that link to Five lemma, each with the reason it gives.

• Exact sequenceRelated: It uses exact rows to infer properties of a map from its neighboring maps.

• Abelian categoryRelated: It is a standard consequence of exactness in abelian categories.

• Snake lemmaRelated: It uses exact-sequence reasoning closely related to the Snake lemma.

• Nine lemmaRelated: Both lemmas use exact diagrams to infer an unknown property from neighboring maps.