FOM: Boolos on Cantor's Theorem
hbe at math.ucla.edu
Mon Feb 12 15:14:20 EST 2001
Mark Steiner wrote:
>Since Cantor's Theorem is under discussion, I thought I would send along
>an letter I received about Cantor's Theorem from the late George Boolos,
>not long before his untimely death. I'm not sure whether he ever
[There follows Boolos's construction, given a function f from P(S)
into S, of an explicit counterexample to injectivity of f.]
Yes, Boolos did publish that. I *think* it was in Constructing
Cantorian counterexamples, Journal of philosophical logic, vol. 26
(1997), pp. 237-239. I don't have that in front me to check, though.
Funny how every three years the diagonal argument makes a splash.
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