# Axiom of Choice

Pronunciation: /ˈæk.si.əm ʌv tʃɔɪs/ Explain

The axiom of choice states that an infinite set, such as the set of all even integers, can be created from other infinite sets, such as the set of all integers[2][3]. This axiom enables mathematical proofs that require selecting a set from a larger set or collection of sets.

This axiom is sometimes called Zermelo's axiom of choice as it was formulated by Ernst Zermelo [German, 1871-1956] in 1904.

### References

1. McAdams, David E.. All Math Words Dictionary, axiom of choice. 2nd Classroom edition 20150108-4799968. pg 23. Life is a Story Problem LLC. January 8, 2015. Buy the book
2. Jech, Thomas. Set Theory. 3rd edition. Stanford Encyclopedia of Philosophy. Metaphysics Research Lab, CSLI, Stanford University. Last Accessed 6/12/2018. http://plato.stanford.edu/entries/set-theory. Buy the book
3. Bell, John L.. The Axiom of Choice. Stanford Encyclopedia of Philosophy. Metaphysics Research Lab, CSLI, Stanford University. Last Accessed 6/12/2018. http://plato.stanford.edu/entries/axiom-choice.

• Eric Schechter. Axiom of Choice. math.vanderbilt.edu. Vanderbilt University. 6/19/2018. https://math.vanderbilt.edu/schectex/ccc/choice.html.
• McAdams, David E.. Axiom. allmathwords.org. All Math Words Encyclopedia. Life is a Story Problem LLC. 6/19/2018. https://www.allmathwords.org/en/a/axiom.html.

McAdams, David E. Axiom of Choice. 12/21/2018. All Math Words Encyclopedia. Life is a Story Problem LLC. https://www.allmathwords.org/en/a/axiomofchoice.html.

### Revision History

12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
6/15/2018: Removed broken links, updated license, implemented new markup. (McAdams, David E.)
4/23/2008: Initial version. (McAdams, David E.)

All Math Words Encyclopedia is a service of Life is a Story Problem LLC.