FOOTNOTES:
Project Gutenberg EPUB3 edition
Whitehead, Alfred North and Russell, Bertrand
CAMBRIDGE: PRINTED BY JOHN CLAY, M.A. AT THE UNIVERSITY PRESS
Source notes
[68] Here the type "" is the type of converses of relations of type , i.e. the type of the negative integers in order of magnitude, ending with , being the type of the positive integers in order of magnitude, and therefore being the type of negative and positive integers in order of magnitude.