19:45

(0,1) vs. the real numbers

20:58

journey into fractals: the Cantor set and ternary expansion.

22:48

Cardinality of the Continuum

8:37

Countable & Uncountable Infinities

21:19

Approximating Irrational Numbers (Duffin-Schaeffer Conjecture) - Numberphile

21:16

Real Analysis | The countability of the rational numbers.

13:55

Imaginary numbers aren't imaginary

22:00

Lecture 36/65: Infinity: Countable and Uncountable