## Fermat's Proofs

Pierre de Fermat (1607-1665) is my outlier of mathematics: not because math was just a hobby for him â€“ he was a lawyer by profession; nor »

Pierre de Fermat (1607-1665) is my outlier of mathematics: not because math was just a hobby for him â€“ he was a lawyer by profession; nor »

Sorry for the long hold up on another post. This new post is a result on my investigations on a proof of \(\zeta(2) = \frac{\pi^ »

Today, I'll prove Euler's Pentagonal Number Theorem and show how he used it to find recurrence formulae for the sum of \(n\)'s positive divisors and »