Azriel Lévy. On a spectrum of set theories. Illinois journal of mathematics, vol. 4 (1960), pp. 413–424. - A. Lévy and R. Vaught. Principles of partial reflection in the set theories of Zermelo and Ackermann. Pacific journal of mathematics, vol. 11 (1961), pp. 1045–1062. - Azriel Lévy. On the principles of reflection in axiomatic set theory. Logic, methodology and philosophy of science, Proceedings of the 1960 International Congress, edited by Ernest Nagel, Patrick Suppes, and Alfred Tarski, Stanford University Press, Stanford, Calif., 1962, pp. 87–93.

J. R. Shoenfield

doi:10.2307/2270738

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Azriel Lévy. On a spectrum of set theories. Illinois journal of mathematics, vol. 4 (1960), pp. 413–424. - A. Lévy and R. Vaught. Principles of partial reflection in the set theories of Zermelo and Ackermann. Pacific journal of mathematics, vol. 11 (1961), pp. 1045–1062. - Azriel Lévy. On the principles of reflection in axiomatic set theory. Logic, methodology and philosophy of science, Proceedings of the 1960 International Congress, edited by Ernest Nagel, Patrick Suppes, and Alfred Tarski, Stanford University Press, Stanford, Calif., 1962, pp. 87–93.

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Azriel Lévy. On a spectrum of set theories. Illinois journal of mathematics, vol. 4 (1960), pp. 413–424. - A. Lévy and R. Vaught. Principles of partial reflection in the set theories of Zermelo and Ackermann. Pacific journal of mathematics, vol. 11 (1961), pp. 1045–1062. - Azriel Lévy. On the principles of reflection in axiomatic set theory. Logic, methodology and philosophy of science, Proceedings of the 1960 International Congress, edited by Ernest Nagel, Patrick Suppes, and Alfred Tarski, Stanford University Press, Stanford, Calif., 1962, pp. 87–93.

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

Azriel Lévy. On a spectrum of set theories. Illinois journal of mathematics, vol. 4 (1960), pp. 413–424. - A. Lévy and R. Vaught. Principles of partial reflection in the set theories of Zermelo and Ackermann. Pacific journal of mathematics, vol. 11 (1961), pp. 1045–1062. - Azriel Lévy. On the principles of reflection in axiomatic set theory. Logic, methodology and philosophy of science, Proceedings of the 1960 International Congress, edited by Ernest Nagel, Patrick Suppes, and Alfred Tarski, Stanford University Press, Stanford, Calif., 1962, pp. 87–93.

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