[FOM] Fwd: Kreisel's Doctorate

[WILLIAM TAIT]

I have Ken Derus’s permission to forward his (slightly edited) message.

> Begin forwarded message:
> 
> From: Kenneth Derus <khderus at sbcglobal.net>
> Subject: Kreisel's Doctorate
> Date: June 16, 2015 at 6:24:18 PM CDT
> To: williamtait at mac.com
> 
> Dear William Tait:
> 
> Kreisel's Sc.D. (Cambridge University, 1962) is a higher doctorate. It was awarded for a large body of work (including the early stuff on surface waves) unrelated to dissertations or advisors.  (He was ‘Dr Kreisel’ not ‘Prof. Kreisel’ because a higher doctorate trumps a professorship.)  If Warsaw gave him a Ph.D. in 1974, it was merely honorary.