Cosme
LightNews LightNews
banner
encos.me
Cosme
@encos.me
190 followers 760 following 69 posts
Parlar ja és exagerar • Àlgebra • @uv.es
http://www.uv.es/coslloen/
Posts Replies Media Videos
Reposted by Cosme
jalonso.bsky.social
@davidbessis.bsky.social The curious case of broken theorems (Mathematics shouldn't survive logical errors—yet it does). ~ David Bessis. davidbessis.substack.com/p/the-curiou... #Math #ITP #LeanProver
The curious case of broken theorems
Mathematics shouldn't survive logical errors—yet it does
davidbessis.substack.com
November 28, 2025 at 4:06 PM
Reposted by Cosme
freya.bsky.social
ooo it's so interesting seeing how dual quaternion splines solve extreme rotational differences!

I made it prefer the shortest path within the quaternion double cover, so when control points pass the 180 degree switch with its neighbors, the path also changes its shape!
November 26, 2025 at 6:42 PM
Reposted by Cosme
jalonso.bsky.social
A gentle introduction to the axiom of choice. ~ Andreas Blass, Dhruv Kulshreshtha. arxiv.org/abs/2509.01830 #Math #SetTheory
A Gentle Introduction to the Axiom of Choice
This article offers a gentle introduction to the axiom of choice. We introduce the axiom, discuss some common objections to it, and present three kinds of reasons to accept it. Although the exposition...
arxiv.org
October 14, 2025 at 9:40 AM
Reposted by Cosme
viquipedia.bsky.social
#Avuifa 15 anys que finà el matemàtic Benoît Mandelbrot (n. 1924).

Conegut com el «pare de la geometria fractal», l'any 1975 creà el terme «fractal» i n'enumerà les propietats fonamentals.
Benoît Mandelbrot - Viquipèdia, l'enciclopèdia lliure
ca.wikipedia.org
October 14, 2025 at 7:14 AM
Reposted by Cosme
principiadiscordia.bsky.social
Jester by Juusto Jones
Jester by Juusto Jones A stark, surreal illustration on a weathered red background. At the center, a devilish jester figure with pointed ears, sharp features, and a wicked grin stands in a dramatic pose. His body splinters outward into a whirl of many arms, each greenish hand grasping or hurling a dagger. The knives radiate in midair around him, their steel catching the eye like spokes of a deadly wheel. His elongated limbs and exaggerated shadow give him an insect-like menace, as though he’s part trickster, part demon, part many-armed deity of chaos. The worn edges of the image only add to its unsettling, pulp-horror energy. Generated with Bluesky AltText, a CustomGPT.
September 30, 2025 at 7:05 AM
Reposted by Cosme
coecke.bsky.social
Nobel Prize Laureate Roger Penrose, Yvette Fuentes, and myself, request your help in order to save an archive of incredible scientific and historical value. Please raise awareness by *sharing*, or *contribute*:

www.crowdfunder.co.uk/p/roger-penr...
September 22, 2025 at 12:48 PM
Reposted by Cosme
timkrief.com
September 16, 2025 at 2:40 PM
Reposted by Cosme
corwijt48.bsky.social
.

flower

.
September 14, 2025 at 2:32 PM
encos.me
zenodo.org/records/1707...
An introduction to Lean 4
This book is an invitation to explore Lean 4, a modern programming language and interactive theorem prover. Lean is not only a tool for writing reliable software, but also a framework for developing r...
zenodo.org
September 8, 2025 at 4:05 PM
Reposted by Cosme
entrevisillos.bsky.social
🚶🏻‍♀️🚶🏻‍♀️🚶🏻‍♀️🚶🏻‍♀️🚶🏻‍♀️
September 5, 2025 at 9:49 AM
encos.me
youtu.be/NeXDCGQ77rI?...
Simulating Knots in My Game - Aglet
YouTube video by galactical
youtu.be
September 4, 2025 at 8:44 PM
encos.me
Un xicotet homenatge al mestre 🌼
Alexander Grothendieck 28/03/1928 - 13/11/2014
August 12, 2025 at 1:03 PM
Reposted by Cosme
computerdream.bsky.social
pensando en este vídeo www.youtube.com/watch?v=IiN3...
Phoenix Wright: Proof of Infinite Primes
YouTube video by Henry Zhou
www.youtube.com
July 22, 2025 at 11:18 PM
Reposted by Cosme
viquipedia.bsky.social
#Taldiacomavui de 2017 finà la matemàtica iraniana Maryam Mirzakhani (en persa «مریم میرزاخانی», n. 1977).

Estudià l'espai de Teichmüller, les geometries hiperbòlica i simplèctica i la teoria ergòdica, i fou la primera dona i la primera persona iraniana a guanyar la Medalla Fields.

#viquidones
Maryam Mirzakhani - Viquipèdia, l'enciclopèdia lliure
ca.wikipedia.org
July 14, 2025 at 3:29 PM
Reposted by Cosme
escolavalenciana.bsky.social
Alacant parla valencià!
June 26, 2025 at 8:52 AM
encos.me
Els correus de Climent donen per a llibre
June 18, 2025 at 4:46 PM
Reposted by Cosme
yeeeerika.bsky.social
this is what Posting feels like
A green duck puppet speaks into a megaphone next to a blue-haired puppet in a safety vest. Caption reads: “Attention, freaks. It’s me.”
June 17, 2025 at 1:58 AM
Reposted by Cosme
graemeneilreid.bsky.social
This house will become a shrine, and punks and skins and rastas will all gather round and hold their hands in sorrow for their fallen leader. And all the grown-ups will say, "But why are the kids crying?" And the kids will say, "Haven't you heard? Rick is dead! The People's Poet is dead!"
Illustration. A profile of a young man shouting.
June 9, 2025 at 9:10 AM
Reposted by Cosme
samandfuzzy.com
Whoops
A six panel comic, three rows of two panels each. Each panel is the same shot: a room with a light bulb dangling from the ceiling by a cord, and a pile of cord on the floor that runs into a hole in the floor. The cord running through the floor in one panel becomes the cord that the light bulb is dangling from in the panel below it. A small dog enters the room. He grabs the cord and starts to pull it. In the third panel, we can see that he is causing the light bulb in the fifth panel to raise. In the fourth panel, he pulls the cord hard enough to yank the light bulb from the sixth panel through the floor and break it. In the 5th panel, the dog holds the cord with the broken light bulb, and looks up at the fifth panel's light bulb as it is being yanked upward by the third panel's dog. In the sixth panel, the dog is now sitting in pitch black darkness, as the sixth panel's light bulb was removed by the fourth panel's dog and there is no longer any light.
May 30, 2025 at 5:32 PM
Reposted by Cosme
escolavalenciana.bsky.social
#MazónDimissió!
Ahir la ciutadania va eixir als carrers ✊ contra la gestió de la DANA, les retallades, els atacs a la llengua i els pressupostos amb l'extrema dreta. En vindran més mobilitzacions, i allà ens trobarem.
⚠️ Contra Mazón i els pressupostos de l'odi, ens plantem!
May 30, 2025 at 8:29 AM
Reposted by Cosme
elpais.com
“Es indignante que nos hable de dinero a personas que hemos perdido a familiares. Hasta dónde llega la empatía, hasta dónde está este hombre deshumanizado". Asociaciones de víctimas de la dana claman contra Mazón
Asociaciones de víctimas de la dana claman contra Mazón: “Está de okupa en la Generalitat, exigimos que dimita”
Los organizadores de la séptima manifestación contra el ‘president’, secundada por 15.000 personas, según la Delegación del Gobierno, recuerdan a los trabajadores afectados por la tragedia
elpais.com
May 29, 2025 at 8:39 PM
Reposted by Cosme
drfleibur.bsky.social
Dibujé esto el año pasado.
May 29, 2025 at 8:43 PM
Reposted by Cosme
arxiv-math-ct.bsky.social
Juan Climent Vidal, Enric Cosme Ll\'opez, Ra\'ul Ruiz Mora
Free monoids and Riguet congruences
https://arxiv.org/abs/2505.15767
May 22, 2025 at 4:08 AM
encos.me
May 17, 2025 at 12:50 PM
Reposted by Cosme
museodelprado.es
En una iniciativa conjunta con los ayuntamientos y la colaboración de la Fundación Amigos Museo del Prado las obras del Prado toman las calles de Paiporta y su entorno para celebrar el #DíaInternacionaldelosMuseos www.youtube.com/watch?v=pBcP...

#MuseodelPrado #museos #Valencia
En un lugar de la memoria
YouTube video by Museo Nacional del Prado
www.youtube.com
May 13, 2025 at 10:41 AM