ChatGPT's breakthrough is not what it seems.

A simple-looking math problem has confused people for years. Here's the answer and the reasoning behind it—that settles the ...

The result is correct but challenges core norms of mathematics: checking proofs, crediting ideas and keeping research open to everyone.

Little progress had been made in solving Ramsey problems since the 1930s. Now, researchers have found the answer to r(4,t), a longstanding Ramsey problem that has perplexed the math world for decades.