Linked from
The 47 pages that link to Zermelo–Fraenkel set theory, each with the reason it gives.
Axiom of pairingNarrower topic: Pairing is one of its standard axioms.
Axiom of FoundationNarrower topic: Foundation is one of the axioms in this standard theory.
Axiom of infinityNarrower topic: The axiom of infinity is one of its standard existence axioms.
Axiom of Power SetNarrower topic: Power Set is one of its standard axioms.
Axiom of regularityNarrower topic: Regularity is one of its standard axioms.
Axiom of Empty SetNarrower topic: The axiom is one of its standard existence assumptions.