The Insolvability of the Quintic
25:10
What is the square root of two? | The Fundamental Theorem of Galois Theory
2:53
Galois Theory in 3 Minutes
21:47
Group Theory | Cyclic Group | Generator Of Cyclic Group | Discrete Mathematics
11:59
But why is there no quintic formula? | Galois Theory
1:21:24
Terence Tao Teaches Mathematical Thinking
9:45
The derivative isn't what you think it is.
20:31
Algebraic number theory - an illustrated guide | Is 5 a prime number?
45:24