as by far the better mathematician, and he viewed his part
&gt; of the project as a continuation of his 1898 book 'Universal Algebra',
&gt; which is worth looking at for its historical development.  I don't blame
&gt; him for Russell's errors in the foundations because he tried to keep them
&gt; out of the PM entirely (which he did in the first edition).  After Russell
&gt; produced the second edition in 1925 (which was mostly a correction of typos
&gt; in the technical parts with a greatly expanded introdu