@DJWebbMath

Logician, musician, special edition. I run upper division math at Chaminade University, and study computability theory/LEAN when I can. Opinions my own. He/him.

 Honolulu, HI
Joined June 2021
  • Tweets3.2K
  • Following34
  • Followers284
115Media
Daniel Litt
@littmath7 Aug 2024
(dark souls text) COUNTEREXAMPLE FOUND
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A note from a 1992 paper I just came across. We have been having this conversation for a *long* time!
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The paper in question: math.mit.edu/~edelman/public…
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Terrible news for my next paper
baddie‎ enthusiast@vedangstwtOct 18
you're either good at math or you have a gf
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For your own sanity, never listen to They Might Be Giants
dudugs@ratvisionistOct 17
sometimes you google "song lyrics meaning" and the response is "it doesnt have any the writer just said things" shouldnt be allowed. songs oughta have a meaning
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Astra summoned up absolute BS on me just this week, claiming a theorem which was easily disproven by an example I’d already discussed with it. Mercifully it folded instantly when pressed, unlike previous models - but it is far from impossible for it to miss or spew nonsense!
Abhishek Saha
@ObhishekSahaOct 17
My experience with Astra is that it is a hard taskmaster. It's almost impossible to sneak anything unrigorous past it. It found minor (but real) mathematical issues in my last paper that Sol never noticed. If it says something is wrong, it is usually right.
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I suppose this does not disprove “if it says something is wrong, it is usually right”, and it’s actually evidence against “if it says something is right, it usually is”
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David J. Webb retweeted
duve
@jevonduveOct 16
really simple intuition for understanding the Löwenheim-Skolem theorem: homepages.ucl.ac.uk/~uctytbu…
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What a surprise in today’s 3B1B video…! youtu.be/LKrwhjOI8Nc?t=1404
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David J. Webb retweeted
Ari Zerner@AriZernerOct 16
If you see someone on here using a word that ends with -oid, you can safely disregard whatever they're saying. For instance, "A monad is a monoid in the category of endofunctors"
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Simple solution
Charles
@wotancoreOct 14
I want to start reading Infinite Jest but I’m scared someone will take a picture of me reading Page 1 and put it on the Internet
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OpenAI should be MUCH more honest about the state of the "preprints", but "normal bad work" is not a helpful framing - a proof of QRH is not "normal" by any stretch of the imagination!
Gaurav Bhatnagar@bhatnagargOct 14
Ok here is one reason i found that dump of 400 theorems so underwhelming. "This is normal bad work" terrytao.wordpress.com/2026/…

This is normal bad work

[This is a guest post by Sophie Huiberts, being an expanded version of a post on her own blog. This blog post was initially written in a different file format and converted using AI. — T.] Wh…

terrytao.wordpress.com
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David J. Webb retweeted
Mira
@_Mira___Mira_Oct 14
github.com/jeff87654/busy-be… Someone else formalized my 254-state "halts iff ZFC is inconsistent" Turing Machine. Claude is really good for this, apparently. So the 254th Busy Beaver cannot be proven in ZFC. That leaves only the 238-state PA machine, which will probably come soon.
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Nah, linear algebra is an attempt to seduce future mathematicians into taking functional analysis
Audrey@tharteofromanceOct 14
linear algebra is a psyop invented to kidnap mathematicians and brainwash them into becoming computer scientists
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The most surprising thing is displaying a continuous density for a distribution whose categories can literally be counted on one's hands.
Adam Zachary Wasserman
@adamzwassermanOct 13
This is the least surprising graph in the world if you understand how gradient descent works.
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David J. Webb retweeted
Elliot Glazer@ElliotGlazerOct 11
An important version of Vaught's conjecture has been refuted! The original Vaught (for FOL) delenda est 🙏
Cameron Freer@cameronfreerOct 11
A counterexample to Vaught’s conjecture for infinitary logic has been verified in Lean! In joint work with Nate Ackerman and Robin Knight, we developed and formalized a construction based on Knight’s unpublished manuscript.
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David J. Webb retweeted
Hanul Jeon@hanuljeon95Oct 11
Mathematical logic will be less threatened by AI than other fields of mathematics. Other mathematicians have already eliminated most of the jobs for logicians.
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David J. Webb retweeted
Sridhar Ramesh@RadishHarmersOct 10
I'm not interested in commentary on math from people who never cared or thought about math prior to the moment it became useful for raising investment $$$ business valuation go up.
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David J. Webb retweeted
Sam Power@sp_monte_carloOct 10
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Man I understand the hatred towards mathematicians coming from people who genuinely struggled at math and other subjects, but seeing it from literal physics and philosophy professors is unreal. "Maybe their job shouldn't be subsidized" bro all of our jobs are for the same reason
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David J. Webb retweeted
duve
@jevonduveOct 9
my friend milo (math phd student at caltech, research intern at logical intelligence) wrote an article on some of the consistency and soundness concerns of Lean, and why they should be taken seriously right now: lesswrong.com/posts/zHhGa3iQ…

A critical look at Lean4 — LessWrong

Lots of the discussion around Lean certificates and trust centers around general philosophical ideas of how much humans should trust formal certifica…

lesswrong.com
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