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Cosme

@encos.me

Parlar ja és exagerar • Àlgebra • @uv.es http://www.uv.es/coslloen/

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20.10.2024
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Latest posts by Cosme @encos.me

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08.03.2026 17:09 👍 1 🔁 0 💬 0 📌 0
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29.12.2025 17:13 👍 2335 🔁 406 💬 29 📌 5

Bon Nadal! 🎄❄️

25.12.2025 09:49 👍 0 🔁 0 💬 0 📌 0

Sí, ministre d’educació

19.12.2025 10:48 👍 0 🔁 0 💬 1 📌 0

Vibe grading

19.12.2025 10:40 👍 0 🔁 0 💬 1 📌 0
"I'm havin a breakdown," says one crudely-drawn stick figure to another. "You'll be OK," says the second. The first stick figure exclaims, "AGGHHH", and collapses. His head and outstretched arms and legs spell out the letters O-K.

"I'm havin a breakdown," says one crudely-drawn stick figure to another. "You'll be OK," says the second. The first stick figure exclaims, "AGGHHH", and collapses. His head and outstretched arms and legs spell out the letters O-K.

You’ll Be OK

03.12.2025 17:41 👍 14181 🔁 3825 💬 65 📌 76
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The curious case of broken theorems Mathematics shouldn't survive logical errors—yet it does

@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

28.11.2025 16:06 👍 7 🔁 3 💬 0 📌 0
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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!

26.11.2025 18:42 👍 254 🔁 13 💬 11 📌 4
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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...

A gentle introduction to the axiom of choice. ~ Andreas Blass, Dhruv Kulshreshtha. arxiv.org/abs/2509.01830 #Math #SetTheory

14.10.2025 09:40 👍 4 🔁 2 💬 0 📌 0
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Benoît Mandelbrot - Viquipèdia, l'enciclopèdia lliure

#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.

14.10.2025 07:14 👍 13 🔁 4 💬 0 📌 0
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.

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.

Jester by Juusto Jones

30.09.2025 07:05 👍 18 🔁 5 💬 0 📌 0
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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...

22.09.2025 12:47 👍 11 🔁 10 💬 1 📌 0
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16.09.2025 14:40 👍 11079 🔁 4658 💬 90 📌 258
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flower

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14.09.2025 14:32 👍 87 🔁 7 💬 1 📌 0
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/records/1707...

08.09.2025 16:05 👍 0 🔁 0 💬 0 📌 0
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🚶🏻‍♀️🚶🏻‍♀️🚶🏻‍♀️🚶🏻‍♀️🚶🏻‍♀️

05.09.2025 09:49 👍 119 🔁 26 💬 1 📌 1
Simulating Knots in My Game - Aglet
Simulating Knots in My Game - Aglet YouTube video by galactical

youtu.be/NeXDCGQ77rI?...

04.09.2025 20:44 👍 1 🔁 0 💬 0 📌 0
Alexander Grothendieck 
28/03/1928 - 13/11/2014

Alexander Grothendieck 28/03/1928 - 13/11/2014

Un xicotet homenatge al mestre 🌼

12.08.2025 13:03 👍 3 🔁 1 💬 0 📌 0
Phoenix Wright: Proof of Infinite Primes
Phoenix Wright: Proof of Infinite Primes YouTube video by Henry Zhou

pensando en este vídeo www.youtube.com/watch?v=IiN3...

22.07.2025 23:18 👍 1 🔁 1 💬 0 📌 0
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Maryam Mirzakhani - Viquipèdia, l'enciclopèdia lliure

#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

14.07.2025 15:29 👍 11 🔁 2 💬 0 📌 0
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Alacant parla valencià!

26.06.2025 08:52 👍 41 🔁 21 💬 0 📌 0

Els correus de Climent donen per a llibre

18.06.2025 16:46 👍 0 🔁 0 💬 0 📌 0
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.”

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.”

this is what Posting feels like

17.06.2025 01:58 👍 6494 🔁 2301 💬 22 📌 55

La qüestió és vore si mos paguen diners per a viure i anar-se’n a llegir a les muntanyes

17.06.2025 11:05 👍 1 🔁 0 💬 1 📌 0

Acabats els exàmens, ara TFGs i TFMs. Amb ganes de fer coses quan em deixen

17.06.2025 10:59 👍 1 🔁 0 💬 1 📌 0

Com va per allà la cosa?

17.06.2025 08:42 👍 0 🔁 0 💬 1 📌 0
Illustration. A profile of a young man shouting.

Illustration. A profile of a young man shouting.

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!"

09.06.2025 09:10 👍 286 🔁 70 💬 8 📌 3
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Dead Internet 😔🥀

02.06.2025 19:38 👍 0 🔁 0 💬 1 📌 0
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.

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.

Whoops

30.05.2025 17:31 👍 4157 🔁 896 💬 31 📌 10
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#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!

30.05.2025 08:28 👍 4 🔁 4 💬 0 📌 0