1/19: Substance Dualism
1/19: Substance Dualism PHIL 241
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This 0 page Class Notes was uploaded by Taylor Russell on Wednesday January 20, 2016. The Class Notes belongs to PHIL 241 at University of Arizona taught by William Leonard in Spring 2016. Since its upload, it has received 72 views. For similar materials see Consciousness and Cognition in PHIL-Philosophy at University of Arizona.
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Date Created: 01/20/16
Taylor Russell PHIL 241 Lecture Summary 119 Substance Dualism gt Substance from Rene Descartes Meditations on First Philosophy 0 Aim is to gure out what we can know with certainty Strategy is to discard all beliefs that are considered uncertain and work our way from there 0 Development of a quotmetaphysical systemquot gt Meditations as a solution to an argument 0 Problem of Cartesian skepticism o Argument quotIf you know P then you know that you are not dreaming demonizeddeceivedquot HOWEVER quotyou do not know that you are not dreamingquot so therefore we know nothing gt Substance Dualism the mind and brain are made of different substances res cogitans and a res extensa Advantages include possibility of afterlife and a sense of validation of separating the mental and physical 0 We essentially nd it hard to imagine nonexistence in terms of mental state however it is easy to imagine death of the physical body according to Bloom This intuitive distinction between body and mind Psych Results about belief in external world weakens case for substance dualism gt Strengthening substance dualism argument 0 lndubitability argument Mind and brain have different properties obviously which causes the consequential distinction Leibniz s Law Xbrain does not equal Ymind because the properties are not identical Dubitability If not P then not P is logically possible P is dubitable Criticism Parallel reasoning argument proves problems for indubitability Conceivability argument Mind and brain could potentially fail to coexist resulting in distinction It is logically possible for my mind to exist without a brain therefore mind does not equal brain must be clear and distinct conceivability Criticism Can you really conceive a mind existing without a brain 0 Does clear and distinct logical possibility gt Substance Dualism now Afterlife is supportive but not evidential of substance dualism lndubitability seems to fail Conceivability argument up in the air