11:41

Pigeonhole Principle

25:39

Cardinality -- Proof Writing 22

8:51

Integers & Rationals are both infinite but is it the SAME infinity?

18:39

Real Analysis | Equinumerosity

9:59

Cauchy's Proof of the Basel Problem | Pi Squared Over Six (3blue1brown SoME1 Entry)

9:49

Bijective Functions and the Continuum Hypothesis

10:10

Bijective Functions and Why They're Important | Bijections, Bijective Proof, Functions and Relations

21:34

Bijection from Evens to Natural Numbers (With Proof!)