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#Lean4
Latest posts tagged with #Lean4 on Bluesky
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Posts tagged #Lean4
This is also not too different to how #Lean4 implements mutability and loops in its do-notation.
(Though I think Lean does not use a key-value-store, but rather just nests multiple State Monad Transformers inside of each other.)
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[New Blog Post] Calling Lean Functions As Python Functions www.philipzucker.com/leancall/ #lean4 #python
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797 downloads! Version 1.2 with Lean 4 formalization has 93% download-to-view ratio (136/146) just one week after update on Zenodo.
The Canonical Six zero divisor patterns compute from 16D sedenions to 256D in BOTH Clifford and Cayley-Dickson algebras.
doi.org/10.5281/zenodo.18357723
#Math #Lean4
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My New Year's resolution has been to give #lean4 a serious try. There's a lot of wonderful stuff! I'm hyped to one day use the proof widgets to insert playable JS-examples into theories. 🤯 And today, my first tiny submission to leanprover/cslib has been merged, yay! 🥳
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709 downloads 🎯
V1.2 with Lean 4 formal verification surging: 63 downloads in 3 days, 96.9% conversion.
The Canonical Six gaining traction with rigorous proofs provided by Harmonic Math's Aristotle.
"Better math, less suffering."
doi.org/10.5281/zeno...
#Lean4 #FormalVerification #Mathematics
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500+ DOWNLOADS on Zenodo! 🎉📈
My paper on The Canonical Six crossed the 500-mark with a 71% conversion rate. Verified by #Lean4 with Harmonic Math's Aristotle. Moving high-dimensional algebra from "pathological" to predictable.
🔗 doi.org/10.5281/zeno...
#Math #ZeroDivisors #TwoAlgebras #Sedenions
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This week I started to learn #lean4 (programming language/proof assistant) and I'm positively in love
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This an unofficial Birgitta Henriques-Normark Lab manager account. #lean4 #procrastination
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hey @ki.se rate my pose at Karolinska Institutet office from -2 to 10. Feet on the table like HR would be proud of !Tack så mycket hey hey #lean4
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#lean4 posting because it consumed my life for three weeks
I can't figure out what people get from this software
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👉 From Zero to QED: An informal introduction to formality in Lean 4
#lean4 #plt #formal
sdiehl.github.io/zero-to-qed/
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The question is not whether you need something but whether it interests you."
https://sdiehl.github.io/zero-to-qed/02_why.html
#lean4
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ReasLab IDE launched: browser-based Lean 4 theorem proving with real-time collaboration. Zero-install setup, cloud projects, unified docs – like Overleaf for formal verification. Big boost for collaborative math. #FormalVerification #Lean4
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Aleph prover just went BEAST MODE 4 math problems unsolved for 20+ years. Formal proofs in Lean 4. Less than 48 hours. Under $5k total.
Things are moving in the world of automated theorem provers.
Are we witnessing the birth of a new era?
"Aleph prover just went BEAST MODE"
#Lean4
Source :
x.com/logic_int/st...
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Imagine AI advisers that suggest hypotheses and then automatically generate physics‑consistent proofs using Lean4. The future of safe, verifiable AI is here—check out how theorem proving meets large‑language models! #Lean4 #FormalVerification #AI
🔗 aidailypost.com/news/lean4-p...
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I nerdsniped myself into learning #Lean4 even though I have zero experience proving things.
Send help, for my sanity.
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It seems the new #Lean4 modules system has an "import all" keyword to work around this limitation, but the modules system is still considered experimental.
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It seems, where-clauses are now private, in recent #Lean4 versions...
(https://github.com/leanprover/lean4/pull/9759
This makes some things annoying. For instance, proving properties of functions in the prelude that use where-clauses (for instance Nat.nextPowerOfTwo) is no longer possible...
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Maths Proofs in Lean First Steps book cover
You don't need a PhD to get started writing simple proofs in Lean.
This guide is written for newcomers.
◉ avoids jargon
◉ short chapters around a small example
◉ focus on concepts, not language
◉ designed to build confidence, not destroy it!
www.amazon.com/dp/B0DWHS1RDJ
#maths #leanprover #lean4
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It seems that #Lean4 has now broken case labels for nested application of the `split` tactic.
Previously, if I used
`split at foo <;> split at bar`
the generated case tags were of the form `h_1.h_1`, `h_1.h_2`, `h_2.h_1`, `h_2.h_2`. Now, in 4.21, they are just `h_1`, `h_2`, `h_1`, `h_2`. So […]
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"Vibe Validation" I got AI to prove my Rust algorithm correct with Lean. The good news: it worked. The bad news: it took weeks, $50, and 4,700 lines of proof for 50 lines of code.
medium.com/@carlmkadie/...
#RustLang #AI #OpenAI #FormalVerification #Lean4 #ChatGPT #ClaudeAI
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I want to get back into doing some #Lean4 again.
I stopped last time, because Lean 4.18 didn't compile, and back then I didn't have the nerves to patch it.
Some months have passed since then, and with them some Lean toolchain versions...
I want to update one version at a time, to keep […]
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Lean 4 Formalizes Mason‑Stothers Theorem and Polynomial Corollaries
The Mason‑Stothers theorem and polynomial corollaries have been formally verified in Lean 4 and merged into mathlib; the work was submitted on 27 Aug 2024 and revised on 25 Sep 2025. Read more: getnews.me/lean-4-formalizes-mason-... #lean4 #mathlib
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Lean Formalization of Harder‑Narasimhan Theory Enhances Proofs
The Harder‑Narasimhan theory has been fully formalized in the Lean 4 proof assistant, with machine‑checked proofs of the canonical filtration released on 23 Sep 2025. Read more: getnews.me/lean-formalization-of-ha... #hardernarasimhan #lean4 #mathlib
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my first arXiv preprint is here ~~
Gödel Mirror: A Formal System for Contradiction-Driven Recursion.
A Lean4 mechanized system that treats contradiction as a control signal for recursion.
arxiv.org/abs/2509.16239
#logic #Lean4 #formalmethods #AI
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