He was a classicly educated man, but he had a brusque manner...

Chad a Crick in ma Back and in ma Niddick.

The answer appears on the eighty-second page of the book.

Instead of saying that the aggregate of natural numbers is countably infinite (see Chapter 24), one can use Cantor's symbolism and state that its cardinal number is א₀ (read aleph null). […] Now the range of a random variable may be a finite set, a countably infinite set, or a continuum.