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“Erdos problem #728 was solved more or less autonomously by AI”

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Re: “Erdos problem #728 was solved more or less autonomously by AI”

#61
post #59

Earlier quoted context omitted.

Do you know what a formal proof is?

Please don't respond to a bad comment by breaking the site guidelines yourself. That only makes things worse. https://news.ycombinator.com/newsguidelines.html

[flagged]

Re: “Erdos problem #728 was solved more or less autonomously by AI”

#62

It took Andrew Wiles 7 years of intense work to solve Fermat's Last Theorem. The METR institute predicts that the length of tasks AI agents can complete doubles every 7 months. We should expect it to take until 2033 before AI solves Clay Institute-level problems with 50% reliability.

That's exactly why the Millennium Prize Problem Bench[1] was created.

1. https://mppbench.com/

Re: “Erdos problem #728 was solved more or less autonomously by AI”

#63
I remember seeing a documentary where there was a bit about some guy who' life's work was computing pi to 30 digits. Imagine all that time to do what my computer can do in less than a second + a day or two to write the code using the algorithm he used. 10 min if you use newton's

Re: “Erdos problem #728 was solved more or less autonomously by AI”

#64
Based on Tao’s description of how the proof came about - a human is taking results backwards and forwards between two separate AI tools and using an AI tool to fill in gaps the human found?

I don’t think it can really be said to have occurred autonomously then?

Looks more like a 50/50 partnership with a super expert human one the one side which makes this way more vague in my opinion - and in line with my own AI tests, ie. they are pretty stupid even OPUS 4.5 or whatever unless you're already an expert and is doing boilerplate.

EDIT: I can see the title has been fixed now from solved to "more or less solved" which is still think is a big stretch.

Re: “Erdos problem #728 was solved more or less autonomously by AI”

#65
post #41

Earlier quoted context omitted.

Every stage of this 3-stage pipeline is an LLM. 1. "The search algorithm is a highly parallel Monte Carlo Graph Search (MCGS) using a large transformer as its policy and value functon." ... "We use a generative policy to take progressively widened [7] samples from the large action space of Lean tactics, conditioning on the Lean proof state, proof history, and, if available, an informal proof. We use the same model an…

If you think "transformer" = LLM, you don't understand the basic terminology of the field. This is like calling AlphaFold an LLM because it uses a transformer.

No, it isn't. They call out ExIt as an inspiration as well as AlphaZero, and the implementation of these things (available in many of their authors' papers) is almost indistinguishable from LLMs. The architecture isn't novel, which is why this paper is about the pipeline instead of about any of the actual processing tools. Getting prickly about meaningless terminology differences is definitely your right, but for anyone who isn't trying to define a policy algorithm for a transformer network, the difference is immaterial to understanding the computation involved.

Re: “Erdos problem #728 was solved more or less autonomously by AI”

#66

Earlier quoted context omitted.

I agree only with the part about reconfiguring existing proofs. That's the value here. It is still likely very tedious to confirm what the LLMs say, but at least it's better than waiting for humans to do this half of the work. For all topics that can be expressed with language, the value of LLMs is shuffling things around to tease out a different perspective from the humans reading the output. This is the only realis…

> It is still likely very tedious to confirm what the LLMs say, A large amount of Tao's work is around using AI to assist in creating Lean proofs. I'm generally on the more skeptical side of things regarding LLMs and grand visions, but assisting in the creation of Lean proofs is a huge area of opportunity for LLMs and really could change mathematics in fundamental ways. One naive belief many people have is that proof…

> I don't believe that's what's happening in this specific example (and am probably wrong), but this is where a lot of Tao's enthusiasm lies.

It absolutely is. With the twist that ChatGPT 5.2 can now also "explain" an AI-generated Lean proof in human-readable terms. This is a game changer, because "refactoring" can now become end-to-end: if the human explanation of a Lean proof is hard to grok and could be improved, you can test changes directly on the formal text and check that the proof still goes through for the original statement.

Re: “Erdos problem #728 was solved more or less autonomously by AI”

#67
post #59

Earlier quoted context omitted.

Do you know what a formal proof is?

Please don't respond to a bad comment by breaking the site guidelines yourself. That only makes things worse. https://news.ycombinator.com/newsguidelines.html

It genuinely seemed to me that they were looking for empirical reproductions of a formal proof, which is a nonsensical demand and objection given what formal proofs are. My question was spurred on by this and genuine.

I now see in the other subthread what they mean.

Re: “Erdos problem #728 was solved more or less autonomously by AI”

#68
post #51

Reconfiguring existing proofs in ways that have been tedious or obscured from humans, or using well framed methods in novel ways, will be done at superhuman speeds, and it'll unlock all sorts of capabilities well before we have to be concerned about AGI. It's going to be awesome to see what mathematicians start to do with AI tools as the tools become capable of truly keeping up with what the mathematicians want from…

> Reconfiguring existing proofs in ways that have been tedious or obscured from humans, To a layman, that doesn't sound like very AI-like? Surely there must be a dozen algorithms to effectively search this space already, given that mathematics is pretty logical?

I actually know about this a bit since it was part of what I was studying with my incomplete PhD.

Isabelle has had the "Sledgehammer" tool for quite awhile [1]. It uses solvers like z3 to search and apply a catalog of proof strategies and then try and construct a proof for your main proof or any remaining subtasks that you have to complete. It's not perfect but it's remarkably useful (even if it does sometimes give you proofs that import like ten different libraries and are hard to read).

I think Coq has Coqhammer but I haven't played with that one yet.

[1] https://isabelle.in.tum.de/dist/doc/sledgehammer.pdf

Re: “Erdos problem #728 was solved more or less autonomously by AI”

#69
post #4

Earlier quoted context omitted.

This is what has excited me for many years - the idea I call "scientific refactoring" What happens if we reason upwards but change some universal constants? What happens if we use Tao instead of Pi everywhere , these kind of fun questions would otherwise require an enormous intellectual effort whereas with the mechanisation and automation of thought, we might be able to run them and see!

Not just for math, but ALL of Science suffers heavily from a problem of less than 1% of the published works being capable of being read by leading researchers. Google Scholar was a huge step forward for doing meta-analysis vs a physical library. But agents scanning the vastness of PDFs to find correlations and insights that are far beyond human context-capacity will I hope find a lot of knowledge that we have technic…

This idea is just ridiculous to anyone who's worked in academia. The theory is nice, but academic publishing is currently in the late stages of a huge death spiral.

In any given scientific niche, there is a huge amount of tribal knowledge that never gets written down anywhere, just passed on from one grad student to the rest of the group, and from there spreads by percolation in the tiny niche. And papers are never honest about the performance of the results and what does not work, there is always cherry picking of benchmarks/comparisons etc.

There is absolutely no way you can get these kinds of insights beyond human context capacity that you speak of. The information necessary does not exist in any dataset available to the LLM.

Re: “Erdos problem #728 was solved more or less autonomously by AI”

#70

Can anyone with specific knowledge in a sophisticated/complex field such as physics or math tell me: do you regularly talk to AI models? Do feel like there's anything to learn? As a programmer, I can come to the AI with a problem and it can come up with a few different solutions, some I may have thought about, some not. Are you getting the same value in your work, in your field?

I work in quantum computing. There is quite a lot of material about quantum computing out there that these LLMs must have been trained on. I have tried a few different ones, but they all start spouting nonsense about anything that is not super basic. But maybe that is just me. I have read some of Terence Tao's transcripts, and the questions he asks LLMs are higher complexity than what I ask. Yet, he often gets reason…

This was also my experience with certain algorithms in the realm of scheduling.
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