On 27/01/2012 04:08 AM, Darren New wrote:
> On 1/23/2012 2:17, Invisible wrote:
>> 2, either A^2 or B^2 would have to have an ODD number of 2 factors -
>> which
>> is impossible.
>
> I've never seen that proof before. Very cool.

Meh. Just /think/ about it for a moment or two... Nothing I've said is 
non-obvious if you play with the ideas for a moment.

Indeed, the non-obvious thing is that by performing algebraic 
manipulations on A^2/B^2=2, you can prove that A and B are both even...

Would you like an encore of my derivation of the quadratic solution 
formula? ;-)

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