Antselm Argument for gods existence "God does not exist" is Contradictory
God dosent exist=god only exists in your mind
But god is the greatest conceivable being.
A being which exists only in the mind is not the greatest conceivable being
God does not exist is contradictory
so god must exist

Objections
1. Gavnillions Greatest conceivable island objection. (redictio Arg aimed at Anselm)
If Anselm Arg works its same form should prove greatest conceivable island, when no such island exists.
An argument which proves anything proves nothing.
Anselm replied by saying that his Arg only works for being in general not kinds of beings.
2. Maybe the concept of god is contradictory
Paradox of omnipotence
could god create a rock so heavy he couldnt lift it?
If yes God is not omnipotent
If no God is not omnipotent
3. Existence is not a property (Kant)
Ex. Thing: My car
Properties: 20yrs old, yellow, dirty, runs
etc.
Existence is not one of those properties.