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
   
Jean Chretien   Name:
Jean Chretien
Type:
Statesman
Nationality:
Canadian
Birth:
January 11, 1934
https://www.nutquote.com/quote/Jean_Chretien