1) this is a proof by example 2) the proof is conducted by writing a python program constructing hypergraphs 3) the consensus was this was low-hanging fruit ready to be picked, and tactics for this problem were available to the LLM

So really this is no different from generating any python program. There are also many examples of combinatoric construction in python training sets.

It's still a nice result, but it's not quite the breakthrough it's made out to be. I think that people somehow see math as a "harder" domain, and are therefore attributing more value to this. But this is a quite simple program in the end.