Paul J. Cohen, the set theorist who showed that the Continuum Hypothesis is not provable under Zermelo-Fraenkel set theory and who, without knowing it, played a minor role in my novel, is dead at 72. His book on set theory is not to be found anywhere for sale—I spent a long time looking, in those days when I had no university to claim me.
I was surprised to find, just now, that Google gives about *500* times as many hits for "set theorist" as "set theoretician".
What, and "scientologist" is a made-up word too?
