Terje Sletteb� <[EMAIL PROTECTED]> writes:
> No. You can't prove a negative, an impossibility.
I think that's wrong, and here's my one white crow to prove it ;-)
I can prove that there can never exist a positive integral multiple of 2 which
is both greater than 2 and prime.
It's the same as saying that *every* positive integral multiple of 2
which is greater than 2 is a non-prime (now it's not a negative
statement anymore, but it is logically equivalent). The positive
integral multiples of 2 which are not greater than 2 are: 2. Since
every other positive integral multiple of 2 is divisible by both 2 and
itself, it must be non-prime. QED, or whatever it is you say while
gleefully dancing on the logical grave of your vanquished opponent
<wink>.
But anyway, isn't this straying a little bit far from being on-topic?
--
David Abrahams
[EMAIL PROTECTED] * http://www.boost-consulting.com
Boost support, enhancements, training, and commercial distribution
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