1. There is a great being called God, and nothing greater than God can be imagined.
2. God exists as an idea in the mind.
3. With all other things being equal, a being that exists in both the mind and reality is better than a being that only exists in the mind.
4. Therefore, if God only exists in the mind, then it’s possible that we can imagine a being more powerful than God.
5. However, that contradicts argument one because nothing greater than God can be imagined.
6. Therefore, God exists.
