TLDR:
Most of the "mathematical breakthroughs" from AI have been done by loading all available recent research from humans solving the problem, and then collating it while skipping reviews and telling the humans who did the work it would literally be "too complicated" to explain the AI didn't actually do anything...
It's all just lies to drive up stock prices, what they release appears to be stuff that would be released shortly anyways, it's just being dumped at once 99% of the way done before it's verified.