The unsolvable problem that launched a revolution in set theory
42:34
The Obviously True Theorem No One Can Prove
22:48
Cardinality of the Continuum
33:06
What if you just keep squaring?
9:24
What is a hole?
13:20
How the Axiom of Choice Gives Sizeless Sets | Infinite Series
25:10
What is the square root of two? | The Fundamental Theorem of Galois Theory
28:32
The Invention That Saved Science
19:05