Zermelo–Fraenkel set theory (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Zermelo–Fraenkel set theory" in English language version.

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archive.org

Ciesielski 1997, p. 4: "Zermelo-Fraenkel axioms (abbreviated as ZFC where C stands for the axiom of Choice)" Ciesielski, Krzysztof (1997). Set Theory for the Working Mathematician. Cambridge University Press. ISBN 0-521-59441-3.
Halbeisen 2011, pp. 62–63. Halbeisen, Lorenz J. (2011). Combinatorial Set Theory: With a Gentle Introduction to Forcing. Springer. pp. 62–63. ISBN 978-1-4471-2172-5.

Kunen 2007, p. 10 Kunen, Kenneth (29 October 2007). The Foundations of Mathematics (PDF). Archived (PDF) from the original on 7 September 2023.

Kunen 2007, p. 10 Kunen, Kenneth (29 October 2007). The Foundations of Mathematics (PDF). Archived (PDF) from the original on 7 September 2023.