Kreiseliana: About and Around Georg Kreisel: …
Kreisel was a mathematical logician who knew Wittgenstein during his student years. Through a cosmic coincidence, Kreisel died today! As I was preparing to write this review, I checked Wikipedia to confirm that he was still alive (in which case I would have begun the review: "Kreisel IS a mathematical logician…"), only to discover his passing on March 1, 2015.
