Page:Russell, Whitehead - Principia Mathematica, vol. I, 1910.djvu/9

 BY

ALFRED NORTH WHITEHEAD, Sc.D., F.R.S.

Fellow and late Lecturer of Trinity College, Cambridge

AND

BERTRAND RUSSELL, M.A., F.R.S.

Lecturer and late Fellow of Trinity College, Cambridge

VOLUME I

Cambridge

at the University Press

1910