Andrés Villaveces Niño

Matemático. Profesor en la Universidad Nacional de Colombia (Bogotá).

Blog (intermitente): https://atsmi.wordpress.com

Model Theory and its interactions with other parts of mathematics. Sometimes, Abstract Elementary Classes, Infinitary Logic.

Je m'intéresse aussi beaucoup à la Philosophie, aux langues et à la photographie - et à la triade Art-Philo-Maths en général.

Estudiante de Myskkubun.

https://avillavecesn.net

Last Notes

2026-04-27 23:53:46 UTC

There is growing pressure to move the ICM out of the USA.
Almost 3,000 people have signed the petition (out of which 113 are anonymous).
Among them, 69 past ICM speakers, including 2 Fields Medalists.
Please help spread the word, and consider signing.
[@m_artigiani](https://mathstodon.xyz/@m_artigiani ) @npub1s0c…8dsv @npub1cgt…n7u4
https://sites.google.com/view/icm2026boycott/home

2025-08-22 03:16:09 UTC

Esa cosa tan loboncia de rebautizar las estaciones de TM usando nombres de tienduchas locales. Hoy me tocó ver que la de la Calle 100 tiene otro nombre (de algún lugar totalmente olvidable). Bogotá se vende muy barato, de verdad. Deberían tener algo de auto-respeto los que organizan TransMilenio.

2025-04-07 11:01:38 UTC

The threat of the USA government declaring martial law is serious, apparently.
*This is NOT a Drill: Trump's Day-One Order Sets the Stage for Martial Law*
By Tony Pentimalli
https://media.col.social/media_attachments/files/114/296/324/859/151/165/original/79683ea3775edd3a.png
https://media.col.social/media_attachments/files/114/296/325/775/469/045/original/5df5ea768c4e501e.png
https://media.col.social/media_attachments/files/114/296/326/929/790/160/original/8e6c813a651e5604.png
https://media.col.social/media_attachments/files/114/296/328/104/762/063/original/82306a25191958be.png

2025-04-07 00:49:43 UTC

Advice sent by UCLA to international students. It is chilling. And most of it applies to students of all universities in the USA.
https://media.col.social/media_attachments/files/114/293/923/684/614/862/original/6edb5631dce030a9.png
https://media.col.social/media_attachments/files/114/293/924/607/908/226/original/656c622a9a42003d.png
https://media.col.social/media_attachments/files/114/293/925/091/693/115/original/8d6fc7e8647ead47.png
https://media.col.social/media_attachments/files/114/293/925/714/055/560/original/ea630cac2976e031.png

2025-02-05 13:44:56 UTC

- reply

Horrific language in Ynet.

2025-01-25 13:23:10 UTC

https://media.col.social/media_attachments/files/113/889/195/372/661/525/original/545c03fb8412a08b.jpg

2024-11-06 22:22:56 UTC

"It should come as no great surprise that a Democratic Party which has abandoned working class people would find that the working class has abandoned them.
While the Democratic leadership defends the status quo, the American people are angry and want change.
And they’re right."
Bernie Sanders
https://media.col.social/media_attachments/files/113/438/342/213/413/793/original/719e98623b1cbf43.jpg
https://media.col.social/media_attachments/files/113/438/342/858/092/120/original/ede4f06748eefbb3.jpg

2024-11-06 13:06:06 UTC

Creo que pronto oiremos hablar (aún más) inglés en los cafés de Chapinero y Teusaquillo. Y desafortunadamente, será gente con buenas intenciones que (sin darse cuenta) empujará los precios de alquileres aún más. Los oiremos en sus zoom meetings en los cafés exclamando "how awesomely cheap Bogotá is", "how good the food is in these restaurants", "how vibrant these streets are", "how nice everyone is", mientras continúan alimentando el horror que estudian en sus proyectos pagados por NYU y CUNY.