Here is the issue:
Let set of all possible worlds be W.
The statement "There is a possible world X such that God necessarily exists" is saying that there exists a set W of all "possible" worlds comprised of {X, Y, Z, ....}. But, there doesn't in fact have to be any such set W that has X. Where are these "actually possible" worlds? Do they exist in our imagination? That's not the same thing as existing in reality.
Let set of all possible worlds be W.
The statement "There is a possible world X such that God necessarily exists" is saying that there exists a set W of all "possible" worlds comprised of {X, Y, Z, ....}. But, there doesn't in fact have to be any such set W that has X. Where are these "actually possible" worlds? Do they exist in our imagination? That's not the same thing as existing in reality.
