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Question of Validity in syllogisms of deductive argument
I read the following excerpt from my A-Level Philosophy book:
"Two key terms that you need to understand in relation to deductions and other
forms of argument are ‘validity’ and ‘soundness’. ...
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Does this argument disprove immaterialism?
-Every observation we have analysed has a material cause.
-By inductive reasoning, all observations have materialistic causes.
-Hence, there are no immaterial causes and immaterialism doesn't exist.
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