today i learned that above degree 4, there is not a general way to algebraically find the roots of a polynomial. this is because there are four algebraic operations (+, -, *, /) and once you hit degree 5 you run out.
The Jacobian conjecture goes to show you shouldn't just accept conventional wisdom, regardless of how long everyone has been saying it. Check on the primality of 57, ASAP.
@__alpoge__@andrew_v10209 Random sidenote I also asked if it could identify you from the post text but it thought you were Will Sawin (tbf I think it didn’t know you were at Anthropic in its training data)
hello there the jacobian conjecture is false thanx to my close friend akhil for asking about it and my other close friend fable for working during the world cup final
((1+xy)^3 z + y^2 (1+xy) (4+3xy), y + 3 x (1+xy)^2 z + 3 x y^2 (4+3xy), 2 x - 3 x^2 y - x^3 z): \C^3\to \C^3, has jacobian determinant -2, and sends (0, 0, -1/4), (1, -3/2, 13/2), and (-1, 3/2, 13/2) to (-1/4, 0, 0)
@__alpoge__ (I guess the types of constructions here tend to be a bit different, but still in the same category of “I’d believe this is only open bc no one has found a clever enough algebraic construction yet”)
AI has now solved a major open problem -- one of the best known Erdos problems called the unit distance problem, one of Erdos's favourite questions and one that many mathematicians had tried.
https://t.co/SD1vVPkrHR
barring further information, it seems OpenAI and Sam Altman have simply directly acceded to the DoW's demands while wrapping it in PR spin to make it palatable to employees and the public. i think this entire affair has been extremely deceptive.
@AlexKontorovich ...Completeness of reals was ~100 lines for me and Heine-Borel was near-200, and I was having to refresh the page entirely after every couple lines by the end in order to stop it from crashing. Possibly I should have just done everything on a local Lean installation?
@AlexKontorovich Possibly an interface issue, but long proofs lag *a lot*. After about 20 lines (which is longer than the HW proofs but shorter than most of the lecture proofs) things start lagging notably, and for anything much longer it really starts breaking...