Page:An introduction to Combinatory analysis (Percy MacMahon, 1920, IA Introductiontoco00macmrich).djvu/9

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AN INTRODUCTION TO
COMBINATORY ANALYSIS

BY


MAJOR P. A. MACMAHON,
D.Sc, Sc.D., LL.D., F.R.S.

Member of St John's College, Cambridge

CAMBRIDGE
AT THE UNIVERSITY PRESS

1920