Sujet : Re: Every sufficiently competent C programmer knows --- Semantic Property of Finite String
De : anw (at) *nospam* cuboid.co.uk (Andy Walker)
Groupes : comp.theoryDate : 15. Mar 2025, 00:09:53
Autres entêtes
Organisation : Not very much
Message-ID : <vr2d01$27fvs$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
User-Agent : Mozilla Thunderbird
On 14/03/2025 19:48, Keith Thompson wrote:
[...] That would imply that [PO] could solve
Goldbach's Conjecture, among other things, but I haven't seen him
do so.
Perhaps [just about] worth noting that a sufficiently long
[but not "infinite"] brute force attack on the GC [and many other
similar conjectures] would resolve the issue. Basically, if you
have a program [eg, TM] of size N by some suitable measure [eg, TM
states] then within [eg] BB(N) steps it must find the counter-example
[if there is one] or else there isn't one [and the GC is proven true],
where BB is the Busy Beaver function. Of course, BB is uncomputable,
but that doesn't mean specific individual values are uncomputable,
just that there is no TM that computes it /in general/.
[I have mentioned here before that BB gives us a much less
troublesome way of attacking the HP than the standard proofs.]
-- Andy Walker, Nottingham. Andy's music pages: www.cuboid.me.uk/andy/Music Composer of the day: www.cuboid.me.uk/andy/Music/Composers/Mayer