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Descartes 's Argument On The Existence Of God

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In A Discourse on the Method, Descartes attempted to prove the existence of God in a priori manner. He did not trust his own senses when trying to prove the existence of God and therefore he relied on the ontological argument. By making the same assumption made by Anselm, which was that an ontological argument assumes that existence is a predicate of God, Descartes is able to conclude that ‘God exists’ is true by definition because the subject ‘God’, who already contains all perfections, already contains the predicate – exists, which is a perfection. Although this may be perceived as a strong claim to believers, many such as Gaunilo would have disagreed. Descartes postulates his argument in the fourth part of his Discourse in order to try and prove the existence of God. One must discuss why one feels Descartes attempted to do so and exactly how convincing his claim is. However, before one can understand his claim, it is important to grasp an idea of the background that Descartes was writing from when he wrote the Discourse and the meaning of proof.

Descartes was a physico-mathematician who dedicated a lot of his time to science. He realised that all truths tend to link to one another and therefore combining a fundamental truth with logic, would for him, lead to science. As a devoted Catholic, Descartes claimed that one of the main purposes of the Mediations was to defend Christian faith. In terms of proof, proof is evidence or an argument that establishes or helps to

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