Azriel Lévy. Definability in axiomatic set theory I. Logic, methodology and philosophy of science, Proceedings of the 1964 International Congress, edited by Yehoshua Bar-Hillel, Studies in logic and the foundations of mathematics, North-Holland Publishing Company, Amsterdam1965, pp. 127–151.
1970 ◽
Vol 34
(4)
◽
pp. 653-654