**D** <=> **A**

**D** : Diaphantine equations

eg.

**A** = Automorphic Form (eg. Elliptic Curves used in highest Cryptography “ECC” )

**Fermat’s Last Theorem**: after failures of 350 yrs, Andrew Wiles in 1994 proved easier from reversed direction A to D.

Lycée **Pierre de Fermat** (Maths Supérieures & Spéciales @Toulouse, France) was my Alma mater。

https://www.quantamagazine.org/amazing-math-bridge-extended-beyond-fermats-last-theorem-20200406/