I think I’m the first person in history to invent a math based off of The Beatles.  I did it so people who don’t listen to The Beatles can easily learn everything they need to know about the band. Below are the basics of this new branch of mathematics:

{Paul, John, George, Ringo} subset {The Beatles} subset {£}

Paul or John or George or Ringo = ?

Paul + John + George + Ringo = $$$$$ and :-/

Paul + John + George + Ringo + drugs = $$$$$ and !!!!!!!!

Paul + drugs = John + drugs > George + drugs > Ringo + drugs

Yoko = -infinity

John + Yoko + drugs = ???!!! + :-{

Paul + drugs = $$$$

John + drugs = $$

George + drugs = $$

Ringo + drugs = $