- Assume God.
- If God has always been, he has been for an infinite amount of time.
- Real infinites do not exist, so 2 is false, thus God cannot always have been
- If God has not always been, then there was a time when there was nothing
- Nothing can come from nothing, so something must alwas have been; we call this God.
- See 2–6.
- Thus, God cannot always have been, and cannot not always have been.