Assess The Arguments For Dualism

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Assess the arguments for dualism Dualism is the idea that the mind ( soul ) is a separate, ontologically different, substance to a body. Two types of dualism exist, substance dualism and property dualism. The substance dualist will state that the body and mind have radically different essential natures, while property dualist says although there is only one type of substance in the world, it possesses two different types of property, physical and mental. Arguably the main founder of this theory, Descartes, tries to defend and prove this view using a number of processes. Using Leibniz's law ( the law that states if X has all the attributes of Y then there is no way to distinguish between them, equally if X has different attributes then it cannot possibly be the same as Y ) Descartes puts the argument of doubt and indubitability to prove the separation of mind and body. Descartes stated that although you can doubt the existence of your body, you cannot possibly doubt the existence of your mind ( as there must be something doing the doubting ) therefore according to Leibniz's law, it is not possible for the mind and body to be the same. Although seemingly viable on first glance, arguments are put against this theory by critic Arnauld. Using right angled triangles he trys to identify flaws in Descartes reasoning. He states that even though he cannot doubt the essential features of a triangle, due to it being true by definition, ( i.e triangles have three sides ) if not tutored in geometry, I could doubt that the triangle possesses Pythagorean property. Just because you can doubt the Pythagorean property of the triangle, does not mean it does not exist. Using this argument in terms of the mind body problem, Arnauld is stating that the body still exists, even if it can be doubted. Although this is a fair critique, a simpler problem arises with this claim. It is

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