Hi, I'm having a lot of trouble with the following question: 1. The problem statement, all variables and given/known data (a) Let x,y ∈ Z. Prove that if x>0 and x+y <xy, then y>0 2. Relevant equations x+y <xy, then y>0 3. The attempt at a solution I am very confused with this problem, and am not even sure on how to start. Any tips/suggestions to help me get started would be greatly appreciated.