Keywords: Clear, Concise, and Complete or [tex]C^{3}[/tex] for short.

Hmm. The elegant [tex]C^{3}[/tex] proof of FTA by Prof. J. C. Santos is exceptional! Enjoy!

Relevant Reference Links:

'Another Proof of FTA' by Prof. J. C. Santos,

https://www.fc.up.pt/mp/jcsantos/PDF/artigos/FTA.pdf;

https://math.stackexchange.com/users/446262/jos%c3%a9-carlos-santos.