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∂AIL Professor Paul W. Purdom↓Computer Science Department
↓101 Lindley Hall↓University of Indiana↓Bloomington Indiana 47801∞
Dear Professor Purdom:

	I have read Hofstadter's book and would be much interested
in his opinion of Sloman's book.

	The book demonstrates a substantial productivity, since it
contains many ideas carefully worked out.  However, it doesn't contain
technical contributions to computer science, to artificial intelligence
 or to philosophy, since
it is basically a popular work.  In my opinion, the
relations it proposes among the works of G%C:%*odel, Escher and Bach,
while thought provoking are not fundamental enough
to lead to advances in these sciences.

	Hofstadter may make important technical contributins
if that is what he works at, but if your tenure decision is to
be based on existing contributions to science, it is premature.  On the other
hand, if you think your department can afford one professor whose
major contributions are as a popularizer and communicator, I don't
see how you can do better than Hofstadter.

.sgn