What Is Mathematics?: An Elementary Approach to Ideas And Methods (2nd Ed, 1996)

What Is Mathematics?: An Elementary Approach to Ideas and Methods (2nd Ed, 1996)

What Is Mathematics?: An Elementary Approach to Ideas and Methods (1941, 2nd Ed 1996)
by Richard Courant, Herbert Robbins, Ian Stewart | ISBN 0195105192 | Djvu | 7.6 Mb
A 1996 revision of a timeless classic originally published in 1941