Re: Preface: Going Further
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Is SK pointing out that to conclude P about the world using logic requires starting with some premise that is not logically deduced and has to be taken on faith.
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DING!DING!DING!DING!DING!
Logic is a set of rules for making valid deductions from assumptions, i.e. premisses accepted on faith. This does not mean that faith is, or should be, immune to the judgments of logic, but there is a certain art to such endeavors ("What [doubting] those ancient Greeks . . . regarded as a task for a whole lifetime . . . . faith was a task for a whole lifetime").
I'm leaving for OSU in a couple minutes, but I'll get back to this after the game.
Scott
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Can you give an example of a premise used in logic that is based on faith?
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Its not a premise used in logic but a premise used in a logical argument.
If you conclude with a statement about the nature of the world then you sarted from at least one premise that is about the world. Where do the initial premises come from?
An example of an initial premise might be that you are observing a real external world. Try proving that you're not dreaming it all.
chez
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