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Science Forum Index » Logic Forum » Mortal man -- Truth or belief??...
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| Rupee... |
 Posted: Thu May 08, 2008 4:44 pm |
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Mortal man -- Truth or belief??
Is every man ever born or yet to be born proveably mortal?? Has such a
proof been been produced. Conclusive proof.
When a man X is to "proved" mortal, a typical "logic" is:
1. X is mortal
2. Because X is a man [grounds of inference. That X is a man can be
proved]
3. Every man is mortal. For example every man like Plato has died
4. X too is a man
5. Therefore X is mortal.
Notice that 5 relies on the truth of 3. But if ONE single man is found
to be immortal, 3 is refuted. Truth of 3 is dependent on truth of 5.
Questions arise.
Have all the men so far born have been observed to have died?? It is a
impossible task for anyone or even a large number of investigators. It
it beyond reason to think that maybe ONE man IS immortal??
Even if true that all men so far born have been mortal, is it fair to
extrapolate this observation to future??
Suppose a man claims to be immortal, in physical sense. Can his claim
be refuted or verified?? An impossible task. |
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