When one thinks of a triangle they think of a 3 angled shape
I know a priori the nature of a traingle
Anything else is a not a traingle
In the same way the nature of God is fixed
When you think of God, you think of his existence
This as the concept of God includes existence
Existence and essence cannot be separated
therefore God exists
Decartes has a rational intuitio that a perfect God exists
The ontological argument suggests that a supremely perfect being must have the property of existence. If he did not exist then he would lack perfection and therefore not be supremely perfect
Decartes then says as a result of the ontological argument the claim that God does not exist is a contradiction
Anselms Ontological Argument
The greatest being conceived exists in the mind
It is greater to exist in reality than to exist in the mind
Therefore the greatest conceivabe being exists not only in the mind but in reality
Therefore, God exists in reality
Decartes Ontological Argument
God is all perfect
Necessary existence is a perfection
If God has necessary existence, then God exists
Thinking of a God that does not exist is akin to thinking of a triangle wothout 3 sides. It is a logical contradiction to do so
