Ontological arguments for the existence of God

• God is that than which nothing greater can be conceived.
• It is greater to exist in the understanding and in reality than to exist in the understanding alone.
• God couldn't be the being than which nothing greater can be conceived if he isn't conceived in reality (<A reductio ad absurdium).
• Therefore, the greatest possible being, God, must exist in the understanding and in reality (Basically God must exist)

• God is a supremely perfect being.
• In orger for God to be supremely perfect, they must posses the supreme perfections.
• Existance (alongside omnipotence, omnibonevolence and omniscience) is a supreme perfection.
• Therefore God, the supremely perfect being, exists (they exist necessarily)

A triangle wouldn't be a triangle if it didn't have three sides, just like how God wouldn't be God  (supremely perfect) if they didn't exist.

Leibniz disagreed with Descartes argument, and argued that we cannot analyse Gods qualities.

• Humans cannot know of or analyse Gods qualities.
• Since perfections are unanalysable, it is impossible to demonstrate that perfections are incompatible.
• He concluded from this that perfections can co-exist in a single being.

Because we cant analyse or disprove Gods perfection we have to conclude that he is perfect

• Therefore God exists necessarily, but his existance is beyond our understanding.

This is an argument by elimination and works through the ideas of : contingent existance, non-existance and necessary existance,

• God is self-sufficient and entirely necessary (aseity)
• Gods existance isn't contingent, it cannot be contringent because his existance is necessary due to his aseity.
• God cannot not-exist, this concept is logically absurd because Gods existance is necessary due to his aseity.
• This leaves only one possibility, God exists necessarily.

• There are infinite dimensions (possible worlds)
• The nature of infinity states that everything must happen at least once
• This must mean that in one of these dimensions there must be a being with maximal greatness
• If a being with maximal greatness exists in one of these dimensions there must be a being with maximal greatness
• If a being is maximally great in one dimension, it must be maximally great in all dimensions
• Therefore there must be a being with maximal greatness in all dimensions, and that being must be God,