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Alan Ross Anderson and Nuel D. Belnap, Jr.
The Journal of Philosophy
Vol. 58, No. 23, American Philosophical Association Eastern Division Fifty-Eighth Annual Meeting, Atlantic City, N. J., December 27-29, 1961 (Nov. 9, 1961), pp. 713-723
Published by: Journal of Philosophy, Inc.
Stable URL: http://www.jstor.org/stable/2023169
Page Count: 11