HP researcher claims proof that P != NP
Ian Mason
ukcrypto at sourcetagged.ian.co.uk
Fri Aug 13 08:12:40 BST 2010
On 12 Aug 2010, at 08:12, Ian Batten wrote:
>
> The decision problem that is NP-complete is the weaker "is there a
> tour that is shorter than a given number". That's clearly much
> easier to check that the tour being the shortest. If I claim you
> can buy a ticket from Cambridge to London for no more than £X and
> show you a ticket for £X, that's the end of it. If I claim you can
> buy a ticket from Cambridge to London for no _less_ than £X, so X
> is a minimum, I can't simply show you a proof without a lengthy
> exercise in considering whether season tickets between arbitrary
> pairs of stations, such as Finsbury Park to Liverpool Street, may
> be involved :-)
>
> ian
>
>
Why does this make me think you've had long conversations with Mr.
Feather before? :)
T'other Ian
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