If we agree to treat “Omega predicts X” as being equivalent to “X is true”, then “Suppose Omega predicts that you’ll give it $5” means “Suppose that you’ll give Omega $5″. Then, the question
Suppose that Omega, as defined above, appears before you and says that it predicted you will give it $5. What do you do? If Omega is a perfect predictor, and it predicted you will give it $5… will you give it $5 dollars?
becomes
Suppose that you will give Omega $5. What will you do?
If we agree to treat “Omega predicts X” as being equivalent to “X is true”, then “Suppose Omega predicts that you’ll give it $5” means “Suppose that you’ll give Omega $5″. Then, the question
becomes
I have no problems with that. Do you?