
Discrete Math Help
here is another homework problem I am stuck on...
Let P(x.y) stand for the proposition that person x plays sport y. For example, P(babe Ruth, Baseball) is true.
Express symbolically, using P and the descriptor notation the set of sports exactly one of you and me plays (i.e., either you play it and I don't or I play it and you don't). Use my initials (JG) and your initials where needed in your expression.

This may not be what your after but I'll give it a hoof.
(A \ B) is defined as A not B.
I.e. IF A was the set {1,2,3,4,5} and B was the set {2,3,4} then (A \ B) would be {1,5} since neither are in B.
So if we do this with your problem we get...
(Deadstar \ JG) means Deadstar but not JG...
So ((Deadstar \ JG), Football) means...Deadstar likes Football and JG doesn't.