The Concept of Proof

A proof is a proof. What kind of a proof? It's a proof. A proof is a proof. And when you have a good proof, it's because it's proven. 

 Jean Chretien - Former Canadian PM.

The contradiction here is that our professor showed us this video and he wants us to proof some statements in our last Assignment. :|

I wonder if this quote could be a solution to those problems or statements!