Equivalents of the axiom of choice

@inproceedings{Grabczewski2001EquivalentsOT,
  title={Equivalents of the axiom of choice},
  author={Krzysztof Grabczewski},
  year={2001}
}
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References

SHOWING 1-3 OF 3 REFERENCES
Equivalents of the Axiom of Choice II
Set Forms. The Well-Ordering Theorem. The Axiom of Choice. The Law of the Trichotomy. Maximal Principles. Forms Equivalent to the Axiom of Choice Under the Axioms of Extensionality and Foundation.
Mechanizing Set Theory: Cardinal Arithmetic and the Axiom of Choice
TLDR
Fairly deep results of Zermelo-Frenkel set theory have been mechanized using the proof assistant Isabelle, and the equivalence of 7 formulations of the Well-ordering Theorem and 20 formulations of AC is proved.