I. Grattan-Guinness, "On the development of logics between the two World
Wars", American Mathematical Monthly 88 (1981), 495-509.
Jean van Heijenoort, "Logic as calculus and logic as language", Boston
Studies in the Philosophy of Science 3 (1967), 440-446. Reprinted in JvH's
Selected Essays (Bibliopolis, 1985), 11-16.
Dr. John W. Dawson, Jr.
Professor of Mathematics
Penn State York
1031 Edgecomb Avenue
York, PA 17403 U.S.A.
Tel.: 717-771-4131 (work)
717-846-1225 (home)
FAX: 717-771-8404