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Andrés E. Caicedo

@andrescaicedo01.bsky.social
812 followers 865 following 277 posts

Father of two. Set theorist. Editor at Math Reviews.

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Reposted by Andrés E. Caicedo
Tim Clare @timclare.bsky.social · 05/09/2026
The Knight's Tour is the route a chess knight would have to take to visit each square of the board exactly once. A knight moves 2 squares on 1 axis & 1 in the other. It has inspired experimental literary forms, like Sanskrit poems that can be read left to right or by jumping syllables like a knight.
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Leo Cadogan @leocadogan.com · 01/09/2026
Typos (not many considering how fast we’re working). Zaragoza, 1663.
Paragraph of errata headed “Erratas. No son muchas, para lo que và tan de prisa”.
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Sarah M @lore.house · 28/08/2026
This just in: New Mnemonic for Americans trying to remember the Great Lakes is SHAME
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ꭓle Ormsby 𓆙 @e-infinity.space · 26/08/2026
May his memory be a limit point. www.douglassfh.com/obituary/jam...
douglassfh.com
Obituary for James R. Munkres at Douglass Funeral Home
James Raymond Munkres passed away peacefully on July 30, 2026 in Bedford, Massachusetts, just a few weeks before his 96th birthday. Jim was born August 18, 1930 to Raymond and Thelma Munkres in in Bro...
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 21/08/2026
This is lovely.
The devil
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Skot Armstrong @skot.bsky.social · 24/07/2026
Los Angeles Public Library unveils the world’s largest pop-up book www.thisiscolossal.com/2026/07/dani...
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🐺Cold🪦Sam🪾 @pdfmerchant.bsky.social · 18/07/2026
lmao just found a this hilarious line from Peirce where he writes, "if you, dear Reader, are inclined to suppose I have overlooked something comparatively obvious, please consider the possibility I have not"
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robertfathauer.bsky.social @robertfathauer.bsky.social · 05/07/2026
Over 5,500 mathematical artworks can now be browsed in an attractive new gallery-wall layout on the Bridges website, thanks to the efforts of Nathan Selikoff: gallery.bridgesmathart.org/gallery?seed...
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 08/06/2026
Do you work on applied or numerical analysis? Come work with us at Mathematical Reviews. www.mathjobs.org/jobs/list/28...
mathjobs.org
MathJobs from the the American Mathematical Society
Mathjobs is an automated job application system sponsored by the AMS.
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 06/06/2026
A shame.
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Women In Logic @womeninlogic.bsky.social · 03/06/2026
🚨NEW BOOK ALERT🚨 Effective Metric Structure Theory by @johannamath.bsky.social et al., Springer 2026. link.springer.com/book/10.1007...
link.springer.com
Effective Metric Structure Theory
Book discusses the increasingly popular topic of computable metric structure theory which unifies methods from effective analysis and computable algebra.
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Andrei @theuntranslated.bsky.social · 02/06/2026
That huge Casares book on Borges is going to be republished in an extended 2-volume version www.lanacion.com.ar/cultura/reed...
lanacion.com.ar
Reeditarán el “Borges” de Bioy Casares, en versión definitiva y ampliada, en dos tomos
Inhallable en librerías, un ejemplar puede costar más de un millón de pesos en Mercado Libre; Emecé confirmó el lanzamiento a veinte años de su publicación original
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Dr Surekha Davies, Historical Monster Consultant (she/her) @drsurekhadavies.bsky.social · 30/05/2026
Historian and former British Library curator here. Of all the mutton-brained decisions taken by universities in relation to libraries, @mit.edu offers an example of the worst: CLOSING LIBRARIES. 1/ 💙📚 🧪🗃 #academicsky fnl.mit.edu/may-june-202...
fnl.mit.edu
Lament for the MIT Libraries - MIT Faculty Newsletter
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Sophia_Nyx 🐰 @sophianyx.bsky.social · 28/05/2026
Name your fav Steven King novel.
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 01/05/2026
Hello. Does anybody have access to the *cover* of the New York Times Book Review for April 15, 2001 ("Vandals in the stacks!")? Could you please post or send me a picture or pdf of it? The best I can find is the microscopic image here: archive.nytimes.com/www.nytimes.... Thanks!
archive.nytimes.com
The New York Times Book Review
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Lauren Gawne @superlinguo.bsky.social · 30/04/2026
I'm sure I wasn't the only kid with weird reading habits who found Desmond Morris's work in secondhand bookstores. As an adult, his collaborative 1979 book on Gesture in Western & Southern Europe has been something I've returned to frequently in my research. www.bbc.com/news/article...
bbc.com
Zoologist and author Desmond Morris dies aged 98
Morris, who was also a surrealist painter and broadcaster, was best known for his 1967 book The Naked Ape.
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c0nc0rdance @c0nc0rdance.bsky.social · 17/04/2026
Hot off the presses! Some people think I'm a stereotype of a nerd 🤓, but isn't that kind of a cliché? Let's talk about how "stereotype" & "cliché" were invented by the printing press. Movable type depended on typesetters putting little letter blocks (a 'sort' or 'type') in 'forms'.
A form, a bracketed rectangle with movable type carefully laid out in rows of varying sizes.

Stolen from a Medium article:
"The original movable type. Image source: Flickr, purdman1"
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Project Gutenberg @gutenberg.org · 09/04/2026
Math at Project Gutenberg Project Gutenberg has long had an interest in mathematics, perhaps because of its timelessness. This interest has been expressed in many ways, though perhaps some of them were misguided in retrospect. www.gutenberg.org/newsletter/ #ebooks #publicdomain
gutenberg.org
Project Gutenberg
Project Gutenberg is a library of free eBooks.
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 30/03/2026
I just found out logician John Addison passed last year. See a short In Memoriam on p. 3: math.berkeley.edu/sites/defaul...
math.berkeley.edu
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Owen Maresh @graveolens.bsky.social · 25/03/2026
@lightningcolors.bsky.social : youtu.be/BrJv_wUEKko?...
youtu.be
How the English language would sound if silent letters weren’t silent - BBC
YouTube video by BBC
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Andy Bechtel @andybechtel.bsky.social · 18/03/2026
A history of typos will soon go on display at Yale: "With this exhibition, we wanted to share ways in which even small corrections can reshape meaning and authority." www.smithsonianmag.com/smart-news/t...
smithsonianmag.com
Typos Have Plagued Us for Centuries. Just Ask the Publishers Who Printed the Seventh Commandment as 'Thou Shalt Commit Adultery' in 1631
A new exhibition at Yale Library explores the history of typos across five centuries. Visitors will see corrections that were listed inside copies of works by James Joyce, Upton Sinclair and Nicolaus ...
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 24/02/2026
This is very timely. I've been lately thinking about what I call the ephemera of mathematical research. All those bits of knowledge we collect informally and easily get lost. A tiny bit more: mathstodon.xyz/@AndresCaice...
mathstodon.xyz
Andrés E. Caicedo (@AndresCaicedo@mathstodon.xyz)
https://en.wikipedia.org/wiki/Wayzgoose A wayzgoose is a celebration typically held by printers and now also by some publishers. There have been wayzgooses for centuries. Mathematical Reviews is ha...
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 24/02/2026
I subscribed a bit late, so they arrived only now. mspmag.com/arts-and-cul...
The End Times, issues 1-4.
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 24/02/2026
www.ams.org/publications...
ams.org
AMS :: MathSciNet Celebrates 30 years
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 19/02/2026
retractionwatch.com/2025/04/07/m... The latest issue of MLQ (Vol 71, no. 4) consists so far of a paper in analysis on time scales, and no logic. onlinelibrary.wiley.com/toc/15213870...
retractionwatch.com
Math journal editors resign to launch open-access title ‘free from pressure or influence’
The managing editors and entire editorial board of Mathematical Logic Quarterly, a Wiley title, have resigned, citing “unilateral decisions” by the publisher “that affected the editorial process.”&…
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Sangsin Lee @sslee.bsky.social · 19/02/2026
The sentencing trial for Yoon Suk-yeol will begin in 10 minutes.
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Richard Kadrey @richardkadrey.bsky.social · 18/02/2026
2026 basically
A photo of an ice cream machine with a sign reading, "Anything is possible with ice cream." Beneath that is a hand lettered sign reading, "No ice cream".
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 13/02/2026
I collect bookmarks (it is a tiny collection so far. If you have some extras, don't hesitate to send them to me). World Bookmark Day (#WOBODA) 2026 is February 25. To celebrate, I figured I would post bookmarks each day leading to the 25th. Today: Berkeley Reads (two bookmarks, front and back)
Berkeley reads (yellow. Front. Some details of the Berkeley Reads program)Berkeley reads (yellow. Back. A drawing of some volunteers of the program)Berkeley reads (white. Front. Same text as in the yellow bookmark)Berkeley reads (white. Back. A photograph of some volunteers of the program, from which the drawing on the back of the yellow bookmark was derived)
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depths of wikipedia @depthsofwikipedia.bsky.social · 08/02/2026
dying to know the story behind the one photo wikipedia has of this mathematician. why was he taking a swim
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 31/01/2026
mathstodon.xyz/@AndresCaice...
mathstodon.xyz
Andrés E. Caicedo (@AndresCaicedo@mathstodon.xyz)
https://en.wikipedia.org/wiki/Wayzgoose A wayzgoose is a celebration typically held by printers and now also by some publishers. There have been wayzgooses for centuries. Mathematical Reviews is ha...
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Warrington-Runcorn New Town Development Plan @warringtonruncorn.com · 30/12/2025
RIP Cecilia Giménez. An artist for our times. www.theguardian.com/world/2025/d...
theguardian.com
Cecilia Giménez, famed for ‘Monkey Christ’ mural mishap, dies at 94
Spanish woman’s attempted restoration of church artwork was widely mocked but became lucrative tourist attraction
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 16/12/2025
HipÓtesis, a periodical of the Universidad de los Andes in Bogotá, published a special issue devoted to mathematics. I have a short paper there (Un teorema de Ramsey para los enteros). hipotesis.uniandes.edu.co/ediciones/ed... doi.org/10.71590/1992-77381
hipotesis.uniandes.edu.co
Edición No. 27
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Joseph O'Rourke @josephorourke.bsky.social · 12/12/2025
Forgot to link to the book: cs.smith.edu/~jorourke/Ma... #MathSky #Mathematics #Origami 🧪
science.smith.edu
Math Origami: Animations & Templates
A click on a thumbnail will run an animated GIF in a new browser window/tab. To repeat the animation, refresh the browser window.
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Ben Fletcher-Watson @bfletcherwatson.bsky.social · 30/11/2025
Eleven years ago, I wrote to Tom Stoppard to ask about this coup de théâtre from 1949. It took me down an unexpected rabbit hole - in memory of Stoppard, here's what I found.
"Years and years ago, there was a production of The Tempest, out of doors, at an Oxford college on a lawn, which was the stage, and the lawn went back towards the lake in the grounds of the college, and the play began in natural light. But as it developed, and as it became time for Ariel to say his farewell to the world of The Tempest, the evening had started to close in and there was some artificial lighting coming on. And as Ariel uttered his last speech, he turned and he ran across the grass, and he got to the edge of the lake and he just kept running across the top of the water — the producer having thoughtfully provided a kind of walkway an inch beneath the water. And you could see and you could hear the plish, plash as he ran away from you across the top of the lake, until the gloom enveloped him and he disappeared from your view.
And as he did so, from the further shore, a firework rocket was ignited, and it went whoosh into the air, and high up there it burst into lots of sparks, and all the sparks went out, and he had gone.

"When you look up the stage directions, it says, 'Exit Ariel.”
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 17/11/2025
Hope someone can help me? The copy I have access to of volume 4 No. 1 (1980) of "AEB. Analytical & Enumerative Bibliography" is missing pp. 14 and 79. This appears to be a problem with that specific copy, since I have not found a reported erratum (or the missing page printed) in later volumes. 1/
Pp. 14, 15 of the copy I have access to of vol. 4 No. 1 (1980) of AEB. Page 14 is missing.
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Leo Cadogan @leocadogan.com · 15/11/2025
“Apuntamientos de otorgrafia”. Typo in the Spanish word for correct spelling (ortografia) in this early C18 publisher’s ad.
Publisher’s ad to last page of a book, within border of typographical decoration. Last item: “Apuntamientos de otorgrafia[sic.], por D. Juan de Palafox”.
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 29/10/2025
A paper on Martin Davis's work has just been published in "Philosophia Mathematica": Martin Davis: An Overview of his Work in Logic, Computer Science, and Philosophy By L De Mol, Y V Matiyasevich, E G Omodeo, A Policriti, W Sieg and E J Weyuker. doi.org/10.1093/phil...
doi.org
Martin Davis: An Overview of his Work in Logic, Computer Science, and Philosophy
Abstract. In his autobiographical essay written in 1999, ‘From logic to computer science and back’, Martin David Davis (1928 3 8–2023 1 1) indicated that h
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Katie Steckles @steckl.es · 18/10/2025
Excitingly, Today's the opening day of MathsWorld, the new hands-on maths museum in London. I've really enjoyed visiting MathsCity in Leeds, but they've now got a London location too! Details at mathsworld.com
mathsworld.com
MathsWorld – London’s new Museum of Mathematics
MathsWorld is an interactive museum in London with innovative hands-on exhibits that explore the beauty, wonder, and everyday relevance of mathematics for visitors of all ages.
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Kyle Orland @kyleor.land · 16/10/2025
"New Far Side comics" was definitely not on my bingo card for this week. They're not bad! www.thefarside.com/new-stuff/
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Fantômas, Le contrebandier de DEI @theefantomas.bsky.social · 07/10/2025
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 02/10/2025
If anyone here has access to the "Journal of the Early Book Society", I would be most grateful if you could send me "The Scribal Transmission of Northern Dialect in the Reeve’s Tale" by Thomas J. Farrell, pp. 75-110 in Vol 25 (2022). I do not currently have access to interlibrary loan. (Thanks!)
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 26/09/2025
Anybody here with access to the Times Literary Supplement? There is an article from last year I would like to read.
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 20/09/2025
If anybody with access to "American Literary Manuscripts : An Essay Review" by John C Broderick (Resources for American Literary Study (1976) 6 (1): 85–95) could share the review with me, I would be most grateful.
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 18/09/2025
Mohammad Golshani (on FB): <17h ago>
I am very sad to say that Ronald Jensen, a leading set theorist and one of my favourite mathematicians, passed away yesterday.

https://en.wikipedia.org/wiki/Ronald_Jensen

(The post includes a picture of Ronald smiling.)
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 14/09/2025
Hoping someone can help me here: what would be a library or online resource (or other options) where I could find some of the publications of the (long defunct) Center for Editions of American Authors? Particularly their Newsletter, their reply to E. Wilson, their Statement of editorial principles.
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 02/09/2025
Geoffrey Chaucer, "The Canterbury Tales", The Squire Tale (Group 3, 2687-2700 in "The Oxford Chaucer" vol 1 (2024) Christopher Canon, James Simpson, eds.)
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Lisa Fagin Davis @lisafdavis.bsky.social · 02/09/2025
I have an amazing opportunity Sept. 15-19. I'll be at the Santa Fe Institute with a dozen invited humanists and scientists discussing this topic: "How do we reconcile traditional humanistic inquiry with mathematical modeling approaches that are reshaping knowledge production?" 1/5
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 01/09/2025
Reposted from Mathstodon, because I am still interested: In "Cantar de Mio Cid", the infantes de Carrión, married to the Cid's daughters, decide to repudiate them, take them to an isolated area, beat them within an inch of their lives, and abandon them. (Cont.)
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Andrés E. Caicedo @andrescaicedo01.bsky.social · 26/08/2025
www.ams.org/news?news_id...
ams.org
AMS :: News from the AMS
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