Rick Mabry and Paul Deiermann are mathematicians.
Rick and Paul also love pizza.
While this does not prove that all those who love pizza are mathematicians, it does prove that all mathematicians love pizza.
And why not? Pizza offers the ultimate eating question: HOW CAN YOU SLICE A PIZZA TO ENSURE THAT ALL PRESENT WILL RECEIVE THE EXACT SAME AMOUNT OF PIZZA?
This was the problem that Rick and Paul set out to find: to determine how to create a PERFECT SLICE OF PIZZA.