Rudolf Carnap. On the use of Hilbert's ε-operator in scientific theories. Essays on the foundations of mathematics, dedicated to A. A. Fraenkel on his seventieth anniversary, edited by Y. Bar-Hillel, E. I. J. Poznanski, M. O. Rabin, and A. Robinson for The Hebrew University of Jerusalem, Magnes Press, Jerusalem 1961, and North-Holland Publishing Company, Amsterdam1962, pp. 156–164.
1971 ◽
Vol 36
(2)
◽
pp. 320-321