Set Theory & Logic
The Complete Idiot’s Guide to the Independence of the Continuum Hypothesis:
Part 1 of <=Aleph_0
For those tuning in from home, the Continuum Hypothesis was formulated by Georg Cantor, the infinity of real numbers (denoted C for continuum, or 2ℵ0) is strictly greater than the infinity of integers (denoted ℵ0, or “Aleph-zero”). CH is simply the statement that there’s no infinity intermediate between ℵ0 and C:
By Scott Aaronson