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Khairul HishamI love the colour green. I remember loving reading about and looking at photos of arrays of different types of green vegetables in encyclopaedias (yes, plural) when I was a kid.<a href="https://dice.camp/tags/Ulam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Ulam</a> is visual culmination of my interest. Even growing up in a small town, ulam never seemed to pique my curiosity. Until I moved to <a href="https://dice.camp/tags/Perlis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Perlis</a> and there's a ton of restaurants here with an incredibly huge selection of ulam with vegetables I've never seen before. I'm in ulam heaven. <a href="https://dice.camp/tags/Malaysia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Malaysia</a> <a href="https://en.wikipedia.org/wiki/Ulam_%28salad%29" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://en.wikipedia.org/wiki/Ulam_%28salad%29</a>

Rod2ik 🇪🇺 🇨🇵 🇪🇸 🇺🇦 🇨🇦 🇩🇰 🇬🇱<a href="https://mastodon.social/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#maths</a> <a href="https://mastodon.social/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</a> : « Une réponse négative au problème 19 d’ <a href="https://mastodon.social/tags/Ulam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Ulam</a> , du <a href="https://mastodon.social/tags/Scottish" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Scottish</a> <a href="https://mastodon.social/tags/Book" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Book</a> »<a href="https://www.lemonde.fr/series-d-ete/article/2024/07/22/le-probleme-de-mathematiques-n-19-du-scottish-book-resolu-par-chance_6255437_3451060.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.lemonde.fr/series-d-ete/article/2024/07/22/le-probleme-de-mathematiques-n-19-du-scottish-book-resolu-par-chance_6255437_3451060.html</a>

Spektrum (inoffiziell)Wasserstoffbomben, Primzahlen, Monte-Carlo-Simulationen: Die Forschung von Stanisław Ulam war extrem vielseitig. Seine Arbeiten finden noch heute in vielen Bereichen Anwendung.<a href="https://anonsys.net/search?tag=Ulam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Ulam</a> <a href="https://anonsys.net/search?tag=StanislawUlam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#StanislawUlam</a> <a href="https://anonsys.net/search?tag=Mathematik" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mathematik</a> <a href="https://anonsys.net/search?tag=MathematischerMonatskalender" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MathematischerMonatskalender</a> <a href="https://anonsys.net/search?tag=Manhattan-Projekt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Manhattan-Projekt</a> <a href="https://anonsys.net/search?tag=Primzahl" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Primzahl</a> <a href="https://anonsys.net/search?tag=Primzahlen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Primzahlen</a> <a href="https://anonsys.net/search?tag=Borsuk-Ulam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Borsuk-Ulam</a> <a href="https://www.spektrum.de/wissen/stanislaw-ulam-von-atombomben-primzahlen-und-simulationen/2214582" rel="nofollow noopener noreferrer" target="_blank">Stanislaw Ulam: Ein vielseitiger Mathematiker beim Manhattan-Projekt</a>

Khairul Hisham<a href="https://dice.camp/tags/Petai" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Petai</a> for <a href="https://dice.camp/tags/ulam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ulam</a>.

Spektrum (inoffiziell)ine Kritzelei aus Langeweile enthüllt mysteriöse Geraden und Diagonalen aus Primzahlen.<a href="https://anonsys.net/search?tag=Primzahlen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Primzahlen</a> <a href="https://anonsys.net/search?tag=Primzahl" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Primzahl</a> <a href="https://anonsys.net/search?tag=Formelwelt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Formelwelt</a> <a href="https://anonsys.net/search?tag=Ulam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Ulam</a> <a href="https://anonsys.net/search?tag=Zahlentheorie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Zahlentheorie</a> <a href="https://anonsys.net/search?tag=Spirale" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Spirale</a> <a href="https://anonsys.net/search?tag=Mathematik" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mathematik</a> <a href="https://www.spektrum.de/magazin/ulams-spiralen-enthuellen-regelmaessigkeiten-in-primzahlen/2120766" rel="nofollow noopener noreferrer" target="_blank">Freistetters Formelwelt: Wie man Primzahlen auf Linie bringt</a>

Jon AwbreySurvey of Precursors Of Category Theory • <a href="https://inquiryintoinquiry.com/2023/04/03/survey-of-precursors-of-category-theory-3/" target="_blank" rel="nofollow noopener noreferrer" translate="no">https://inquiryintoinquiry.com/2023/04/03/survey-of-precursors-of-category-theory-3/</a>A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.<a href="https://mathstodon.xyz/tags/CategoryTheory" class="mention hashtag" rel="tag">#CategoryTheory</a> <a href="https://mathstodon.xyz/tags/CombinatoryLogic" class="mention hashtag" rel="tag">#CombinatoryLogic</a> <a href="https://mathstodon.xyz/tags/LambdaCalculus" class="mention hashtag" rel="tag">#LambdaCalculus</a> <a href="https://mathstodon.xyz/tags/RelationTheory" class="mention hashtag" rel="tag">#RelationTheory</a> <a href="https://mathstodon.xyz/tags/Aristotle" class="mention hashtag" rel="tag">#Aristotle</a> <a href="https://mathstodon.xyz/tags/Kant" class="mention hashtag" rel="tag">#Kant</a> <a href="https://mathstodon.xyz/tags/Peirce" class="mention hashtag" rel="tag">#Peirce</a> <a href="https://mathstodon.xyz/tags/Sch%C3%B6nfinkel" class="mention hashtag" rel="tag">#Schönfinkel</a> <a href="https://mathstodon.xyz/tags/Hilbert" class="mention hashtag" rel="tag">#Hilbert</a> <a href="https://mathstodon.xyz/tags/Ackermann" class="mention hashtag" rel="tag">#Ackermann</a> <a href="https://mathstodon.xyz/tags/Carnap" class="mention hashtag" rel="tag">#Carnap</a> <a href="https://mathstodon.xyz/tags/HaskellCurry" class="mention hashtag" rel="tag">#HaskellCurry</a> <a href="https://mathstodon.xyz/tags/WilliamHoward" class="mention hashtag" rel="tag">#WilliamHoward</a> <a href="https://mathstodon.xyz/tags/JoachimLambek" class="mention hashtag" rel="tag">#JoachimLambek</a> <a href="https://mathstodon.xyz/tags/SaundersMacLane" class="mention hashtag" rel="tag">#SaundersMacLane</a> <a href="https://mathstodon.xyz/tags/PropositionsAsTypesAnalogy" class="mention hashtag" rel="tag">#PropositionsAsTypesAnalogy</a> <a href="https://mathstodon.xyz/tags/CurryHowardIsomorphism" class="mention hashtag" rel="tag">#CurryHowardIsomorphism</a> <a href="https://mathstodon.xyz/tags/Ulam" class="mention hashtag" rel="tag">#Ulam</a>

Spektrum (inoffiziell)Eine Kritzelei aus Langeweile enthüllt mysteriöse Linien aus Primzahlen. Warum sich die Zahlen in den so genannten Ulam-Spiralen regelhaft anordnen, weiß jedoch niemand.<a href="https://anonsys.net/search?tag=Primzahlen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Primzahlen</a> <a href="https://anonsys.net/search?tag=Primzahl" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Primzahl</a> <a href="https://anonsys.net/search?tag=Freistetter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Freistetter</a> <a href="https://anonsys.net/search?tag=Formelwelt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Formelwelt</a> <a href="https://anonsys.net/search?tag=Ulam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Ulam</a> <a href="https://anonsys.net/search?tag=Zahlentheorie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Zahlentheorie</a> <a href="https://anonsys.net/search?tag=spirale" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#spirale</a> <a href="https://anonsys.net/search?tag=Mathematik" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mathematik</a> <a href="https://www.spektrum.de/kolumne/ulams-spiralen-enthuellen-regelmaessigkeiten-in-primzahlen/2119908" rel="nofollow noopener noreferrer" target="_blank">Freistetters Formelwelt: Wie man Primzahlen auf Linie bringt</a>

Rémi EismannOne day, one decomposition A002858: Ulam numbers: a(1) = 1; a(2) = 2; for n>2, a(n) = least number > a(n-1) which is a unique sum of two distinct earlier terms3D graph <a href="https://mathstodon.xyz/tags/threejs" class="mention hashtag" rel="tag">#threejs</a> <a href="https://mathstodon.xyz/tags/webGL" class="mention hashtag" rel="tag">#webGL</a> ➡️ <a href="https://decompwlj.com/3Dgraph/Ulam_numbers.html" target="_blank" rel="nofollow noopener noreferrer" translate="no">https://decompwlj.com/3Dgraph/Ulam_numbers.html</a> 2D graph, first 500 terms ➡️ <a href="https://decompwlj.com/2Dgraph500terms/Ulam_numbers.html" target="_blank" rel="nofollow noopener noreferrer" translate="no">https://decompwlj.com/2Dgraph500terms/Ulam_numbers.html</a><a href="https://mathstodon.xyz/tags/decompwlj" class="mention hashtag" rel="tag">#decompwlj</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="tag">#math</a> <a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="tag">#mathematics</a> <a href="https://mathstodon.xyz/tags/sequence" class="mention hashtag" rel="tag">#sequence</a> <a href="https://mathstodon.xyz/tags/OEIS" class="mention hashtag" rel="tag">#OEIS</a> <a href="https://mathstodon.xyz/tags/javascript" class="mention hashtag" rel="tag">#javascript</a> <a href="https://mathstodon.xyz/tags/php" class="mention hashtag" rel="tag">#php</a> <a href="https://mathstodon.xyz/tags/3D" class="mention hashtag" rel="tag">#3D</a> <a href="https://mathstodon.xyz/tags/Ulam" class="mention hashtag" rel="tag">#Ulam</a> <a href="https://mathstodon.xyz/tags/least" class="mention hashtag" rel="tag">#least</a> <a href="https://mathstodon.xyz/tags/numbers" class="mention hashtag" rel="tag">#numbers</a> <a href="https://mathstodon.xyz/tags/unique" class="mention hashtag" rel="tag">#unique</a> <a href="https://mathstodon.xyz/tags/sum" class="mention hashtag" rel="tag">#sum</a> <a href="https://mathstodon.xyz/tags/distinct" class="mention hashtag" rel="tag">#distinct</a> <a href="https://mathstodon.xyz/tags/terms" class="mention hashtag" rel="tag">#terms</a> <a href="https://mathstodon.xyz/tags/graph" class="mention hashtag" rel="tag">#graph</a>

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