The derivative isn't what you think it is.
20:31
Algebraic number theory - an illustrated guide | Is 5 a prime number?
6:19
Stokes' Theorem on Manifolds
25:10
What is the square root of two? | The Fundamental Theorem of Galois Theory
25:27
What Lies Between a Function and Its Derivative? | Fractional Calculus
13:37
Differential Geometry in Under 15 Minutes
2:19:51
Cohomologie : une histoire de groupes, d'anneaux et de géométrie
14:38
Qu'est-ce que la topologie algébrique ?
1:47:19