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Guest resident of Brno, Czech Republic. PhD Engineer (Cantab), reader of non fiction (science, history, art, philosophy and many others), amateur mathematician, vegan etc. P.S.: I never respond to cold DMs. Please don't even try.
Question for 4th August, 2025 from the
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Apparently it's known as Brocard's Problem and 4,5,7 are the only known numbers with this property
en.m.wikipedia.org/wiki/Brocard...
New piece on time travel, written for special issue marking the 50th anniversary of David Lewis’s ‘The paradoxes of time travel’. #philsky #philsci
philpapers.org/rec/PRILAT-16
Question for 3rd August, 2025 from the
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So ... we did it again! The July 2025 issue of the Journal of Humanistic Mathematics is now ready for your enjoyment! At 415 pages, we hope that there is something in it that will appeal to everyone. Please check it out! #mathart #poetry #openaccess #mathishuman
scholarship.claremont.edu/jhm/
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What is common between the Fourier series and the Cartesian coordinate system?
More than you think: they are (almost) the same.
Let me explain why!
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22.07.2025 18:05 — 👍 1 🔁 0 💬 1 📌 0Question for 22nd July, 2025 from the
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List is quite long, actually. Some said all real Viennese come from Brünn ☺️. Not sure if you would count Schumpeter (not from Brno but a Moravian), for instance, among many others. Robert Musil lived here for quite some time too, but was born in Klagenfurt.
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It does, as long as we are restricted to the decimal representation
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He modeled the logic of induction; traced the contours of the embodied mind; hung out with Einstein, Wheeler, and Bohr; gave away millions for art and conservation; fought for civil and gay rights; and lived as a janitor. My new story in @nautil.us
nautil.us/finding-pete...
I see it that way too. The way this question was posed has many problems. Even assuming they meant "following" instead of "followed by", (i.e. game ends with HHHH or HHHT) last flip should mean that the game has ended with HHHX. i.e. only the last flip is unknown, so the probability of Heads is 1/2.
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