11:05

Sup A+B = Sup A + Sup B

13:02

Supremum of a set

18:11

Showing this series converges is surprisingly difficult.

14:22

What is 0 to the power of 0?

9:53

401.1Y Proving the density of the rationals

24:50

Construction of the Real Numbers

16:19

sin(n) is dense!

10:53

Archimedean Property