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Old 08-19-2017, 06:23 PM   #8
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Default Re: what can you prove to actually exist within your internal model of external reali

Not that this thread seems serious at all, but if you were to want an actual answer, you should be able to first define "exist", "internal model" and "external reality" in terms of a logical problem that can then be analysed to be provable or not.
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