P1. If we can conceive the idea ‘God‘, then God exists potentially.Second Argument:
P2. We can conceive the idea 'God' (i.e., we understand the word 'God' when used).
C1. Therefore, the idea 'God' exists in our understanding.
P3. If 'God' exists in the mind alone, then we can conceive of a Being greater than 'God'.
Note: To exist is greater than not to exist.
P4. We cannot conceive of a Being greater than 'God' (by definition).
C2. Therefore, 'God' cannot exist in our understanding alone.
C3. Therefore, 'God' must exist both in our understanding and in reality.
P1. We can conceive of something existing necessarily or contingently (but not both).
P2. Necessary things are greater than contingent things.
P3. God is a necessary thing (by definition).
C1. Therefore, if 'God' can be conceived to exist contingently, 'God' is not God.
P4. It is a contradiction to assert that God is not God.
C2. Therefore, we cannot conceive of God as a contingent being.
C3. Therefore, God must be a necessary being.