Linked from

The 8 pages that link to Commutative diagram, each with the reason it gives.

• Category theoryRelated: Diagrams make categorical equations and relationships visible.

• Universal propertyRelated: Diagrams make the equations required by universal properties visible.

• FunctorRelated: Functoriality makes mapped diagrams preserve equations between composite paths.

• Natural transformationRelated: Naturality is expressed by commutativity in every square induced by a source morphism.

• MorphismRelated: Commutativity expresses equations between routes built from morphisms.

• Snake lemmaNarrower topic: The lemma starts with a commutative diagram whose rows are exact.

• Five lemmaNarrower topic: The lemma’s hypotheses and conclusion are arranged as a commutative diagram.

• Nine lemmaNarrower topic: Commutativity lets maps across rows and columns constrain one another.