Sign in

José A. Alonso

@jalonso.eurosky.social
1.8K followers 693 following 6.8K posts

Mathematician interested in the study and teaching of computational logic, functional programming and interactive theorem proving. Homepage: jaalonso.github.io Sevilla, Spain

PostsRepliesMedia
José A. Alonso @jalonso.eurosky.social · 2h
Is AI the end of math as we know it? ~ Jordana Cepelewicz. www.quantamagazine.org/is-ai-the-en... #AI4Math
quantamagazine.org
Is AI the End of Math As We Know It? | Quanta Magazine
Mathematicians are facing the sudden shift with grief, anger, and a desperate search for fresh ideas: “If we don’t adapt, there’s just no more math in 50 years.”
000
José A. Alonso @jalonso.eurosky.social · 2h
«Donde abunda la sabiduría, abunda el pesar; quien aumenta el conocimiento, aumenta el dolor.» ~ Eclesiastés.
001
José A. Alonso @jalonso.eurosky.social · 20h
Sound and complete solving for multi-width parametric bitvectors via principled reductions. ~ Siddharth Bhat et als. dl.acm.org/doi/pdf/10.1... #LeanProver
000
José A. Alonso @jalonso.eurosky.social · 21h
Enunciado del reto 22 de Lean 4: Si una sucesión tiene dos subsucesiones con límites distintos, entonces la sucesión no es convergente. jaalonso.github.io/calculemus/p... #RetoLean4 #LeanProver #ITP #Math
000
José A. Alonso @jalonso.eurosky.social · 21h
Enunciado del reto 22 de Lean 4: Si una sucesión tiene dos subsucesiones con límites distintos, entonces la sucesión no es convergente. #RetoLean4 #LeanProver #ITP #Math
010
José A. Alonso @jalonso.eurosky.social · 21h
Soluciones del reto 21 de Lean 4: Las subsucesiones tienen el mismo límite que la sucesión. jaalonso.github.io/calculemus/p... #RetoLean4 #LeanProver #ITP #Math
010
José A. Alonso @jalonso.eurosky.social · 22h
Solving open research problems together (Mathematicians and Muse Spark collaborate on six research papers). research.meta.ai/blog/solving... #AI4Math
research.meta.ai
Solving Open Research Problems Together
Mathematicians and Muse Spark collaborate on six research papers
031
José A. Alonso @jalonso.eurosky.social · 22h
Weekly reads: Sep 28 – Oct 4, 2026. jaalonso.github.io/vestigium/po... #AI4Math #Agda #FunctionalProgramming #Haskell #ITP #IsabelleHOL #LLMs #LeanProver #Logic #LogicProgramming #Math #Prolog #RocqProver
jaalonso.github.io
Weekly reads: Sep 28 – Oct 4, 2026
Here are the reads I shared on Mastodon this past week: 1. Lean 4 A constructive ATLAS of finite simple groups in Lean. ~ Gerald Höhn. #LeanProver #ITP #AI4Math A Lean formalization of the Hamilton-P
021
José A. Alonso @jalonso.eurosky.social · 05/10/2026
«Todos ven lo que aparentas, pocos perciben lo que eres.» ~ Nicolás Maquiavelo (1469-1527).
000
José A. Alonso @jalonso.eurosky.social · 04/10/2026
Reseña de «Why I became a professional mathematician». jaalonso.github.io/vestigium/po... #AI4Math
jaalonso.github.io
Reseña de «Why I became a professional mathematician»
En el artículo «Why I became a professional mathematician», Frank Vallentin reflexiona sobre su vocación, nacida de la belleza, la profundidad y el trabajo en equipo. Aunque una IA sobrehumana mecanic
010
José A. Alonso @jalonso.eurosky.social · 04/10/2026
Why I became a professional mathematician. ~ Frank Vallentin. proofsandprompts.com/2026/10/02/w... #AI4Math
proofsandprompts.com
Why I became a professional mathematician
In this personal essay, I reconstruct the reasons why I chose to become a professional mathematician. In particular, I want to find out whether I would still find these reasons convincing and motiv…
000
José A. Alonso @jalonso.eurosky.social · 04/10/2026
Reseña de «If math is more than proof, we need to better celebrate the rest of it». jaalonso.github.io/vestigium/po... #AI4Math
jaalonso.github.io
Reseña de «YAPOAI (Yet Another Post on AI): AI, understanding, and mat
En el artículo «YAPOAI (Yet Another Post on AI): AI, understanding, and mathematical work», Najib Idrissi reflexiona sobre el papel de la IA en la investigación matemática. Aunque recurre a estos mod
000
José A. Alonso @jalonso.eurosky.social · 04/10/2026
YAPOAI (Yet Another Post on AI): AI, understanding, and mathematical work. ~ Najib Idrissi. proofsandprompts.com/2026/10/03/y... #AI4Math
proofsandprompts.com
YAPOAI (Yet Another Post on AI): AI, understanding, and mathematical work
I use large language models quite a lot in my research. I ask them to look for references, explain unfamiliar mathematics, write code, suggest approaches, find counterexamples, and try to prove thi…
011
José A. Alonso @jalonso.eurosky.social · 04/10/2026
«El sabio no acumula: cuanto más obra para los demás, más posee; cuanto más da a los demás, más tiene.» ~ Lao-Tse (siglo VI a.C.).
010
José A. Alonso @jalonso.eurosky.social · 03/10/2026
Proving at scale for universal algebra. ~ João Araújo, Jan Hula, Mikoláš Janota, Edmond W. H. Lee, Bartosz Naskrecki. people.ciirc.cvut.cz/~janotmik/ma... #LeanProver #ITP #AI4Math
people.ciirc.cvut.cz
010
José A. Alonso @jalonso.eurosky.social · 03/10/2026
Reseña de «If math is more than proof, we need to better celebrate the rest of it». jaalonso.github.io/vestigium/po... #AI4Math
jaalonso.github.io
Reseña de «If math is more than proof, we need to better celebrate the
En el artículo «If math is more than proof, we need to better celebrate the rest of it», Grant Sanderson parte de una idea extendida: resolver problemas y generar demostraciones han servido siempre co
000
José A. Alonso @jalonso.eurosky.social · 03/10/2026
If math is more than proof, we need to better celebrate the rest of it. ~ Grant Sanderson. terrytao.wordpress.com/2026/09/18/i... #AI4Math
terrytao.wordpress.com
If math is more than proof, we need to better celebrate the rest of it
[This is a guest post by Grant Sanderson. This blog post was initially written in a different file format and converted using AI. — T.] A sentiment echoing throughout the mathematics communit…
051
José A. Alonso @jalonso.eurosky.social · 03/10/2026
Reseña de «Only Anatevka: the mathematical community's values, its incentives, and LLMs». ~ Ethan Sussman. proofsandprompts.com/2026/10/02/o... #AI4Math
proofsandprompts.com
Only Anatevka
“At the moment, the mathematics community is facing an unprecedented misalignment brought on by the advent of LLMs. According to the standard telling, the basic tension is between our traditional v…
010
José A. Alonso @jalonso.eurosky.social · 03/10/2026
Reseña de «AIM: an invitation to explore mathematics together». jaalonso.github.io/vestigium/po... #AI4Math
jaalonso.github.io
Reseña de «AIM: an invitation to explore mathematics together»
En el artículo «AIM: an invitation to explore mathematics together», Matthew Colbrook sugiere utilizar la IA para mejorar el aprendizaje matemático. Su meta es abrir camino a estudiantes y jóvenes inv
000
José A. Alonso @jalonso.eurosky.social · 03/10/2026
AIM, explained (Explanations of open applied mathematics). ~ Matthew Colbrook et als. mathematics-explained.com #AI4Math
mathematics-explained.com
AIM problem explanations · AIM, explained
Papers and videos explaining open problems in the AIM GitHub repository, their mathematics and applications.
000
José A. Alonso @jalonso.eurosky.social · 03/10/2026
AI for mathematical problems: an invitation for mathematicians. ~ Matthew Colbrook et als. github.com/MColbrook/AIM #AI4Math
github.com
GitHub - MColbrook/AIM: AI for Mathematical Problems: An Invitation for Mathematicians
AI for Mathematical Problems: An Invitation for Mathematicians - MColbrook/AIM
000
José A. Alonso @jalonso.eurosky.social · 03/10/2026
AIM: an invitation to explore mathematics together. ~ Matthew Colbrook. terrytao.wordpress.com/2026/10/02/a... #AI4Math
terrytao.wordpress.com
AIM: an invitation to explore mathematics together
[This is a guest post by Matthew Colbrook. This blog post was initially written in a different file format and converted using AI. — T.] (Disclosure: ChatGPT helped me write and refine this p…
000
Reposted by José A. Alonso
Adolfo Neto @adolfoneto.elixiremfoco.com · 02/10/2026
Functional Programming in Lean David Thrane Christiansen This is a free book on using Lean as a programming language. All code samples are tested with Lean release 4.33.0. #LeanLang lean-lang.org/functional_p...
lean-lang.org
Functional Programming in Lean
032
José A. Alonso @jalonso.eurosky.social · 03/10/2026
Free math textbooks from university mathematicians. abakcus.com/book-lists/f... #Math
abakcus.com
Free Math Textbooks from University Mathematicians
125 free math textbooks professors publish on their own pages: algebra, calculus, analysis, probability and statistics, sorted by subject, level and format.
132
José A. Alonso @jalonso.eurosky.social · 03/10/2026
«¿Qué hay más familiar y conocido que el tiempo al hablar de él? Ciertamente lo entendemos cuando lo decimos, y entendemos también cuando lo oímos decir a otro. ¿Qué es, pues, el tiempo? Si nadie me lo pregunta, lo sé; si quiero explicárselo a quien me lo pregunta, no lo sé. Sin embargo, digo ...
000
José A. Alonso @jalonso.eurosky.social · 02/10/2026
Reseña de «To grieve, or not to grieve? (Mathematics and AI)». jaalonso.github.io/vestigium/po... #AI4Math
jaalonso.github.io
Reseña de «To grieve, or not to grieve? (Mathematics and AI)»
En el artículo «To grieve, or not to grieve? (Mathematics and AI)» Kevin Buzzard explora la crisis existencial que atraviesan los matemáticos ante el avance de la IA, comparando su reacción con el pro
000
José A. Alonso @jalonso.eurosky.social · 02/10/2026
To grieve, or not to grieve? (Mathematics and AI). ~ Kevin Buzzard. xenaproject.wordpress.com/2026/10/01/t... #AI4Math
xenaproject.wordpress.com
To grieve, or not to grieve?
Recent events in the field of AI for mathematics have shown us beyond all reasonable doubt that the field is currently undergoing a rapid transformation, unlike anything that we have ever seen befo…
000
José A. Alonso @jalonso.eurosky.social · 02/10/2026
Formalising linear elliptic PDE theory in Lean 4. ~ Alejandro José Soto Franco, Kobe Marshall-Stevens. arxiv.org/abs/2609.325... #LeanProver #ITP #Math
arxiv.org
Formalising Linear Elliptic PDE Theory in Lean 4
We formalise in Lean 4, on top of Mathlib, the solvability of the Dirichlet problem for second-order linear elliptic operators in divergence form. The machine-verified results, with no sorry in the de...
010
José A. Alonso @jalonso.eurosky.social · 02/10/2026
A Lean formalization of the Hamilton-Perelman proof of the three-dimensional Poincaré conjecture. ~ Ziyang Qin, Yuan Liao, Ayush Khaitan, Bennett Chow. arxiv.org/abs/2609.338... #LeanProver #ITP
arxiv.org
A Lean Formalization of the Hamilton--Perelman Proof of the Three-Dimensional Poincaré Conjecture
We formalize the smooth three-dimensional Poincaré conjecture, together with the Moise smoothing theorem, yielding the topological three-dimensional Poincaré conjecture. The smooth proof follows the H...
010
José A. Alonso @jalonso.eurosky.social · 02/10/2026
«Parece, pues, que soy más sabio que él en una cosa muy pequeña —precisamente en esto—: en que lo que no sé, tampoco creo saberlo.» ~ Sócrates (479-399 a.C.).
000
José A. Alonso @jalonso.eurosky.social · 01/10/2026
Papers with Lean: arXiv papers that use Lean. paperswithlean.com #LeanProver #ITP
paperswithlean.com
Papers With Lean
arXiv papers that use Lean, the interactive theorem prover. Updated daily.
010
José A. Alonso @jalonso.eurosky.social · 01/10/2026
What did the Lean proof of Fermat's Last Theorem formalize? ~ Justin Asher. justinasher.me/what-did-the... #LeanProver #ITP #AI4Math
justinasher.me
What did the Lean proof of Fermat's Last Theorem formalize?
The AI-generated Lean proof of Fermat's Last Theorem follows the broad classical strategy, but its intermediate results vary in scope and formulation. Comparing selected declarations with their source...
000
José A. Alonso @jalonso.eurosky.social · 01/10/2026
Formalize everything, now! ~ Justin Asher. justinasher.me/formalize-ev... #LeanProver #ITP #AI4Math
justinasher.me
Formalize everything, now!
Two years ago I argued that we needed an autoformalizer. Since then an industry has formed around the idea, and in September 2026 an AI system formalized Fermat's Last Theorem. Autoformalization now w...
000
José A. Alonso @jalonso.eurosky.social · 01/10/2026
Teaching Haskell in the age of LLMs, part 1: ban or embrace? ~ Vladislav Zavialov. serokell.io/blog/teachin... #Haskell #FunctionalProgramming #LLMs
serokell.io
Teaching Haskell in the Age of LLMs, Part 1: Ban or Embrace?
LLMs can solve standard Haskell exercises. We explain why this challenges functional programming course design and why our new course will allow their use.
020
José A. Alonso @jalonso.eurosky.social · 01/10/2026
Reseña de «AI solves a ‘holy grail’ problem from probability theory». jaalonso.github.io/vestigium/po... #AI4Math
jaalonso.github.io
Reseña de «AI solves a ‘holy grail’ problem from probability theory»
El artículo «AI solves a ‘holy grail’ problem from probability theory» explora el misterio de la teoría de la percolación y la búsqueda de su «umbral crítico». En esencia, este campo estudia cómo el c
000
José A. Alonso @jalonso.eurosky.social · 01/10/2026
The Odlyzko–Poonen conjecture on irreducibility of random polynomials. ~ Constantin Kogler. arxiv.org/abs/2609.26771 #LeanProver #ITP #AI4Math
arxiv.org
The Odlyzko-Poonen Conjecture on Irreducibility of Random Polynomials
The Odlyzko-Poonen conjecture states that a monic polynomial of constant coefficient $1$ and with remaining coefficients chosen independently and uniformly from $\{0,1 \}$ is irreducible over the rati...
000
José A. Alonso @jalonso.eurosky.social · 01/10/2026
«No hay que irritarse con las cosas, pues a ellas nada les importa.» ~ Marco Aurelio (121-180).
000
José A. Alonso @jalonso.eurosky.social · 30/09/2026
#RetoLean4: Soluciones del reto 17 (Las sucesiones convergentes están acotadas). jaalonso.github.io/calculemus/p... #LeanProver #ITP #Math
010
José A. Alonso @jalonso.eurosky.social · 30/09/2026
Reseña de «Can AI truly prove anything?» jaalonso.github.io/vestigium/po... #AI4Math
jaalonso.github.io
Reseña de «Can AI truly prove anything?»
El artículo Can AI truly prove anything? sostiene que la capacidad de la IA para generar pruebas formales (como en código Lean) no equivale a "hacer matemáticas". Propone distinguir entre resultados "
000
José A. Alonso @jalonso.eurosky.social · 30/09/2026
Can AI truly prove anything? ~ Stepan Nesterov. proofsandprompts.com/2026/09/29/c... #AI4Math
proofsandprompts.com
Can AI truly prove anything?
“About a hundred years ago, David Hilbert gave a rigorous definition of a mathematical proof: […] I will not recall here the definition of the set of axioms of logic, which was, of course, the main…
010
José A. Alonso @jalonso.eurosky.social · 30/09/2026
New proofs of weak normalization for propositional logic. ~ S P Suresh. arxiv.org/abs/2609.14314 #LeanProver #ITP #Logic
arxiv.org
New Proofs of Weak Normalization for Propositional Logic
We present new proofs of weak normalization for intuitionistic and classical propositional logics (with the full set of operators -- falsum, implication, conjunction and disjunction). These proofs wor...
010
José A. Alonso @jalonso.eurosky.social · 30/09/2026
Sage: Formalization with semantic correction. ~ Thomas Hirtz, Farzad Jafarrahmani, Abdelmouksit Sagueni, Xiang Zhou, Wengping Deng, Liang Zhang. arxiv.org/abs/2609.35790 #LeanProver #ITP #AI4Math
arxiv.org
Sage: Formalization with Semantic Correction
While neural theorem provers have achieved impressive milestones in formal mathematics, they largely operate on the assumption that faithful Lean 4 formal statements are already provided. Translating ...
010
José A. Alonso @jalonso.eurosky.social · 30/09/2026
A constructive ATLAS of finite simple groups in Lean. ~ Gerald Höhn. arxiv.org/abs/2609.35847 #LeanProver #ITP #AI4Math
arxiv.org
A constructive ATLAS of finite simple groups in Lean
We present a constructive atlas of finite simple groups with proofs of their orders, simplicity, and structural properties. The eight completed families are cyclic groups of prime order, alternating g...
000
José A. Alonso @jalonso.eurosky.social · 30/09/2026
Proofs without nominals: Gödel's ontological argument, its shallow embedding, and the open questions of the Monatshefte Notes. ~ Christoph Benzmüller. arxiv.org/abs/2609.36279 #IsabelleHOL #LeanProver #ITP
arxiv.org
Proofs Without Nominals: Gödel's Ontological Argument, its Shallow Embedding, and the Open Questions of the Monatshefte Notes
The shallow embedding of higher-order modal logic in classical higher-order logic, used in Benzmüller and Scott's Notes on Gödel's and Scott's variants of the ontological argument (2025), reaches beyo...
000
José A. Alonso @jalonso.eurosky.social · 30/09/2026
Reseña de «Responsible release of AI-generated mathematics». jaalonso.github.io/vestigium/po... #AI4Math
jaalonso.github.io
Reseña de «Responsible release of AI-generated mathematics»
El artículo Responsible release of AI-generated mathematics, del Advisory group on mathematics and artificial intelligence, analiza la tensión entre los avances de la inteligencia artificial en matemá
010
José A. Alonso @jalonso.eurosky.social · 30/09/2026
Responsible release of AI-generated mathematics. ~ Advisory Group on Mathematics and Artificial Intelligence. agmai.org/general-sep29/ #AI4Math
000
José A. Alonso @jalonso.eurosky.social · 30/09/2026
«El hombre no es otra cosa que lo que él se hace.» ~ Jean-Paul Sartre (1905-1980).
000
José A. Alonso @jalonso.eurosky.social · 29/09/2026
Reseña de «Applied mathematics has met the machine before». jaalonso.github.io/vestigium/po... #AI4Math
jaalonso.github.io
Reseña de «Applied mathematics has met the machine before»
El artículo Applied mathematics has met the machine before sostiene que la IA no afecta por igual a las matemáticas puras y a las aplicadas. Las puras se identifican con grandes conjeturas, sus «faros
000
José A. Alonso @jalonso.eurosky.social · 29/09/2026
Applied mathematics has met the machine before. ~ Denys Dutykh. proofsandprompts.com/2026/09/28/a... #AI4Math
proofsandprompts.com
Applied mathematics has met the machine before
Why does AI worry applied mathematicians less? We have met the machine before: human computers moved up to designing algorithms, and a computer run led to the solution. Driven by problems rather th…
111
José A. Alonso @jalonso.eurosky.social · 29/09/2026
«Todo lo que nos irrita en los demás puede llevarnos a un mejor conocimiento de nosotros mismos.» ~ Carl Gustav Jung (1875-1961).
000