Principia mathematica, vol. 1 (of 3)
Project Gutenberg EPUB3 edition
Whitehead, Alfred North and Russell, Bertrand
PRINCIPIA MATHEMATICA
CAMBRIDGE UNIVERSITY PRESS London: FETTER LANE, E.C. C. F. CLAY, MANAGER
Edinburgh: 100, PRINCES STREET Berlin: A. ASHER AND CO. Leipzig: F. A. BROCKHAUS New York: G. P. PUTNAM'S SONS Bombay and Calcutta: MACMILLAN AND CO., LTD.
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