101010.pl

Project GutenbergAlgebra is more than alphabet soup – it’s the language of algorithms and relationshipsBy Courtney Gibbons<a href="https://theconversation.com/algebra-is-more-than-alphabet-soup-its-the-language-of-algorithms-and-relationships-234541" rel="nofollow noopener" translate="no" target="_blank">https://theconversation.com/algebra-is-more-than-alphabet-soup-its-the-language-of-algorithms-and-relationships-234541</a><a href="https://mastodon.social/tags/mathematics" class="mention hashtag" rel="nofollow noopener" target="_blank">#mathematics</a> <a href="https://mastodon.social/tags/number" class="mention hashtag" rel="nofollow noopener" target="_blank">#number</a> <a href="https://mastodon.social/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a>

Flipboard Science DeskWhat do Sudoku, AI, Rubik’s cubes, clocks and molecules have in common? They can all be reimagined as algebraic equations.From <a href="https://newsie.social/@TheConversationUS" class="u-url mention" rel="nofollow noopener" target="_blank">@TheConversationUS</a>: "Algebra is more than alphabet soup – it’s the language of algorithms and relationships."<a href="https://flip.it/41r-jh" rel="nofollow noopener" translate="no" target="_blank">https://flip.it/41r-jh</a><a href="https://flipboard.social/tags/Algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#Algebra</a> <a href="https://flipboard.social/tags/Math" class="mention hashtag" rel="nofollow noopener" target="_blank">#Math</a> <a href="https://flipboard.social/tags/Mathematics" class="mention hashtag" rel="nofollow noopener" target="_blank">#Mathematics</a> <a href="https://flipboard.social/tags/Science" class="mention hashtag" rel="nofollow noopener" target="_blank">#Science</a>

Sci-books.comClifford Algebras and Dirac Operators in Harmonic Analysis (Cambridge Studies in Advanced Mathematics Book 26) 1st Edition by J. Gilbert (PDF) Author: J. Gilbert File Type: PDF Download at <a href="https://sci-books.com/clifford-algebras-and-dirac-operators-in-harmonic-analysis-cambridge-studies-in-advanced-mathematics-book-26-1st-edition-b01dm26vjq/" rel="nofollow noopener" translate="no" target="_blank">https://sci-books.com/clifford-algebras-and-dirac-operators-in-harmonic-analysis-cambridge-studies-in-advanced-mathematics-book-26-1st-edition-b01dm26vjq/</a> <a href="https://mastodon.social/tags/Algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#Algebra</a>, <a href="https://mastodon.social/tags/J" class="mention hashtag" rel="nofollow noopener" target="_blank">#J</a>.Gilbert

Bibliolater 📚 📜 🖋**A Hyper-Catalan Series Solution to Polynomial Equations, and the Geode**“_....the hyper-Catalan numbers 𝐶𝐦 count the number of subdivisions of a polygon into a given number of triangles, quadrilaterals, pentagons, etc. (its type 𝐦), and we show that their generating series solves a polynomial equation of a particular geometric form. This solution is straightforwardly extended to solve the general univariate polynomial equation._”Wildberger, N. J. and Rubine, D. (2025) ‘A Hyper-Catalan Series Solution to Polynomial Equations, and the Geode’, The American Mathematical Monthly, pp. 1–20. doi: <a href="https://doi.org/10.1080/00029890.2025.2460966" rel="nofollow noopener" target="_blank">https://doi.org/10.1080/00029890.2025.2460966</a>.<a href="https://qoto.org/tags/OpenAccess" class="mention hashtag" rel="nofollow noopener" target="_blank">#OpenAccess</a> <a href="https://qoto.org/tags/OA" class="mention hashtag" rel="nofollow noopener" target="_blank">#OA</a> <a href="https://qoto.org/tags/Article" class="mention hashtag" rel="nofollow noopener" target="_blank">#Article</a> <a href="https://qoto.org/tags/DOI" class="mention hashtag" rel="nofollow noopener" target="_blank">#DOI</a> <a href="https://qoto.org/tags/Maths" class="mention hashtag" rel="nofollow noopener" target="_blank">#Maths</a> <a href="https://qoto.org/tags/Mathematics" class="mention hashtag" rel="nofollow noopener" target="_blank">#Mathematics</a> <a href="https://qoto.org/tags/Math" class="mention hashtag" rel="nofollow noopener" target="_blank">#Math</a> <a href="https://qoto.org/tags/Algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#Algebra</a> <a href="https://qoto.org/tags/Polynomials" class="mention hashtag" rel="nofollow noopener" target="_blank">#Polynomials</a> <a href="https://qoto.org/tags/Academia" class="mention hashtag" rel="nofollow noopener" target="_blank">#Academia</a> <a href="https://qoto.org/tags/Academics" class="mention hashtag" rel="nofollow noopener" target="_blank">#Academics</a>

Bibliolater 📚 📜 🖋🔴 **Descartes’ Mathematics**“_In La Géométrie, Descartes details a groundbreaking program for geometrical problem-solving—what he refers to as a “geometrical calculus” (calcul géométrique)—that rests on a distinctive approach to the relationship between algebra and geometry._”Domski, Mary, “Descartes’ Mathematics”, The Stanford Encyclopedia of Philosophy (Summer 2025 Edition), Edward N. Zalta & Uri Nodelman (eds.), forthcoming URL = <<a href="https://plato.stanford.edu/archives/sum2025/entries/descartes-mathematics/" rel="nofollow noopener" target="_blank">https://plato.stanford.edu/archives/sum2025/entries/descartes-mathematics/</a>>. <a href="https://qoto.org/tags/Descartes" class="mention hashtag" rel="nofollow noopener" target="_blank">#Descartes</a> <a href="https://qoto.org/tags/History" class="mention hashtag" rel="nofollow noopener" target="_blank">#History</a> <a href="https://qoto.org/tags/HistSci" class="mention hashtag" rel="nofollow noopener" target="_blank">#HistSci</a> <a href="https://qoto.org/tags/Maths" class="mention hashtag" rel="nofollow noopener" target="_blank">#Maths</a> <a href="https://qoto.org/tags/Mathematics" class="mention hashtag" rel="nofollow noopener" target="_blank">#Mathematics</a> <a href="https://qoto.org/tags/Math" class="mention hashtag" rel="nofollow noopener" target="_blank">#Math</a> <a href="https://qoto.org/tags/Algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#Algebra</a> <a href="https://qoto.org/tags/Geometry" class="mention hashtag" rel="nofollow noopener" target="_blank">#Geometry</a>

Nalini JoshiHaving started to look at getting a replacement computer, I realized that I haven’t kept up with developments. I want to do many <a href="https://mathstodon.xyz/tags/Gr%C3%B6bner" class="mention hashtag" rel="nofollow noopener" target="_blank">#Gröbner</a> basis calculations. Do symbolic <a href="https://mathstodon.xyz/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> programs care how many GPUs the computer has? Have they now been adapted to run on GPUs?

Charlotte AtenA fundamental result in universal algebra is the Subdirect Representation Theorem, which tells us how to decompose an algebra \(A\) into its "basic parts". Formally, we say that \(A\) is a subdirect product of \(A_1\), \(A_2\), ..., \(A_n\) when \(A\) is a subalgebra of the product \[ A_1\times A_2\times\cdots\times A_n \] and for each index \(1\le i\le n\) we have for the projection \(\pi_i\) that \(\pi_i(A)=A_i\). In other words, a subdirect product "uses each component completely", but may be smaller than the full product.A trivial circumstance is that \(\pi_i:A\to A_i\) is an isomorphism for some \(i\). The remaining components would then be superfluous. If an algebra \(A\) has the property than any way of representing it as a subdirect product is trivial in this sense, we say that \(A\) is "subdirectly irreducible".Subdirectly irreducible algebras generalize simple algebras. Subdirectly irreducible groups include all simple groups, as well as the cyclic \(p\)-groups \(\mathbb{Z}_{p^n}\) and the Prüfer groups \(\mathbb{Z}_{p^\infty}\).In the case of lattices, there is no known classification of the finite subdirectly irreducible (or simple) lattices. This page (<a href="https://math.chapman.edu/~jipsen/posets/si_lattices92.html" rel="nofollow noopener" translate="no" target="_blank">https://math.chapman.edu/~jipsen/posets/si_lattices92.html</a>) by Peter Jipsen has diagrams showing the 92 different nontrivial subdirectly irreducible lattices of order at most 8. See any patterns?We know that every finite subdirectly irreducible lattice can be extended to a simple lattice by adding at most two new elements (Lemma 2.3 from Grätzer's "The Congruences of a Finite Lattice", <a href="https://arxiv.org/pdf/2104.06539" rel="nofollow noopener" translate="no" target="_blank">https://arxiv.org/pdf/2104.06539</a>), so there must be oodles of finite simple lattices out there.<a href="https://mathstodon.xyz/tags/UniversalAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#UniversalAlgebra</a> <a href="https://mathstodon.xyz/tags/combinatorics" class="mention hashtag" rel="nofollow noopener" target="_blank">#combinatorics</a> <a href="https://mathstodon.xyz/tags/logic" class="mention hashtag" rel="nofollow noopener" target="_blank">#logic</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://mathstodon.xyz/tags/AbstractAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#AbstractAlgebra</a>

Colin the MathmoEvery polynomial with real coefficients factors into linear and quadratic terms.How much machinery is needed to show this?If it crosses the X-axis then it has a linear term.If it doesn't cross the X-axis then it is of even degree, and the roots come in complex conjugate pairs.What the minimum needed to see this?<a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener" target="_blank">#maths</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://mathstodon.xyz/tags/ComplexNumbers" class="mention hashtag" rel="nofollow noopener" target="_blank">#ComplexNumbers</a> <a href="https://mathstodon.xyz/tags/MathsChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#MathsChat</a> <a href="https://mathstodon.xyz/tags/MathChat" class="mention hashtag" rel="nofollow noopener" target="_blank">#MathChat</a>

Joshua GrochowJust found an English translation of Emmy Noether's 1921 "Idealtheorie in Ringbereichen" ("Ideal Theory in Rings"): <a href="https://arxiv.org/abs/1401.2577" rel="nofollow noopener" translate="no" target="_blank">https://arxiv.org/abs/1401.2577</a>(while editing the wikipedia page on subdirect products - my first wiki edit to add an Emmy Noether reference! Turns out there's a direct lineage from Noether to Birkhoff's introduction of subdirect products in universal algebra. Just one more way in which she really revolutionized algebra.)<a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/AlgebraicGeomtry" class="mention hashtag" rel="nofollow noopener" target="_blank">#AlgebraicGeomtry</a> <a href="https://mathstodon.xyz/tags/Algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#Algebra</a> <a href="https://mathstodon.xyz/tags/UniversalAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#UniversalAlgebra</a>

Niels MoseleyThe <a href="https://mastodon.social/tags/Python" class="mention hashtag" rel="nofollow noopener" target="_blank">#Python</a>/Scipy sparse linalg solver couldn't solve the quadratic placement problem for the industry standard 'adaptec1' benchmark. It ran out of memory (16 GB of RAM). This isn't even a large problem by today's standards. <a href="https://mastodon.social/tags/vlsi" class="mention hashtag" rel="nofollow noopener" target="_blank">#vlsi</a> <a href="https://mastodon.social/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a>

mc ☕Learn Algebra with Julia - Math for entry-level IT professionals, vol. 1, <a href="https://qoto.org/tags/mybook" class="mention hashtag" rel="nofollow noopener" target="_blank">#mybook</a> <a href="https://qoto.org/tags/newbook" class="mention hashtag" rel="nofollow noopener" target="_blank">#newbook</a> 🆕 is available here: <a href="https://leanpub.com/learnalgebrawithjulia/" rel="nofollow noopener" target="_blank">https://leanpub.com/learnalgebrawithjulia/</a>> As W. W. Saywer writes in his Mathematicians Delight, “The main object of this book is to dispel the fear of mathematics.”> “It’s no secret that knowing advanced mathematical concepts and being comfortable with learning <a href="https://qoto.org/tags/math" class="mention hashtag" rel="nofollow noopener" target="_blank">#math</a> will open up more avenues for you as a software <a href="https://qoto.org/tags/developer" class="mention hashtag" rel="nofollow noopener" target="_blank">#developer</a>. …"> The very nature of programming is mathematical.-- from the Intro<a href="https://qoto.org/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://qoto.org/tags/julialang" class="mention hashtag" rel="nofollow noopener" target="_blank">#julialang</a> <a href="https://qoto.org/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a>

Charlotte AtenI've found a citation of my own work on Wikipedia for the first time!<a href="https://en.wikipedia.org/wiki/Commutative_magma" rel="nofollow noopener" translate="no" target="_blank">https://en.wikipedia.org/wiki/Commutative_magma</a>Naturally, I read this page before I wrote my rock-paper-scissors paper. It's neat to see that my own work is now the citation for something that was unsourced "original research" on Wikipedia.<a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/research" class="mention hashtag" rel="nofollow noopener" target="_blank">#research</a> <a href="https://mathstodon.xyz/tags/Wikipedia" class="mention hashtag" rel="nofollow noopener" target="_blank">#Wikipedia</a> <a href="https://mathstodon.xyz/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://mathstodon.xyz/tags/games" class="mention hashtag" rel="nofollow noopener" target="_blank">#games</a> <a href="https://mathstodon.xyz/tags/RockPaperScissors" class="mention hashtag" rel="nofollow noopener" target="_blank">#RockPaperScissors</a> <a href="https://mathstodon.xyz/tags/AbstractAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#AbstractAlgebra</a> <a href="https://mathstodon.xyz/tags/UniversalAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#UniversalAlgebra</a> <a href="https://mathstodon.xyz/tags/combinatorics" class="mention hashtag" rel="nofollow noopener" target="_blank">#combinatorics</a> <a href="https://mathstodon.xyz/tags/GameTheory" class="mention hashtag" rel="nofollow noopener" target="_blank">#GameTheory</a>

Joshua GrochowBut! TIL there's a categorical definition that supposedly agrees w/ "surjection" on any variety of algebras: h is "categorically surjective" (a term I just made up) if for any factorization h=fg with f monic, f must be an iso.(h/t Knoebel's book <a href="https://doi.org/10.1007/978-0-8176-4642-4" rel="nofollow noopener" translate="no" target="_blank">https://doi.org/10.1007/978-0-8176-4642-4</a>) Are there categorical definitions that agree w/ injective (resp. surjective) on all concrete categories?<a href="https://mathstodon.xyz/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://mathstodon.xyz/tags/CategoryTheory" class="mention hashtag" rel="nofollow noopener" target="_blank">#CategoryTheory</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/UniversalAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#UniversalAlgebra</a>

Joshua GrochowThe notion of epimorphism can be quite different from surjection, e.g. in Rings. Though I recently learned epimorphisms can be characterized in terms of Isbell's zig-zags: <a href="https://en.wikipedia.org/wiki/Isbell%27s_zigzag_theorem" rel="nofollow noopener" translate="no" target="_blank">https://en.wikipedia.org/wiki/Isbell%27s_zigzag_theorem</a>.Whereas monic seems to capture the notion of "injective" quite well in a categorical def. And indeed the two agree on any variety of algebras in the sense of universal algebra.<a href="https://mathstodon.xyz/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://mathstodon.xyz/tags/CategoryTheory" class="mention hashtag" rel="nofollow noopener" target="_blank">#CategoryTheory</a> <a href="https://mathstodon.xyz/tags/UniversalAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#UniversalAlgebra</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener" target="_blank">#math</a>

Joshua GrochowAbelian Artinian Noetherian Cohen-Macaulay Hilbert Jacobson rings <a href="https://mathstodon.xyz/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://mathstodon.xyz/tags/CommutativeAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#CommutativeAlgebra</a>

Charlotte AtenI posted a new paper on the arXiv!<a href="https://arxiv.org/abs/2409.12923" rel="nofollow noopener" translate="no" target="_blank">https://arxiv.org/abs/2409.12923</a>In "Higher-dimensional book-spaces" I show that for each \(n\) there exists an \(n\)-dimensional compact simplicial complex which is a topological modular lattice but cannot be endowed with the structure of topological distributive lattice. This extends a result of Walter Taylor, who did the \(2\)-dimensional case.I think this kind of result is interesting because we can see that whether spaces continuously model certain equations is a true topological invariant. All of the spaces that I discuss here are contractible, but only some can have a distributive lattice structure.A similar phenomenon happens with H-spaces. The \(7\)-sphere is an H-space, and it is even a topological Moufang loop, but it cannot be made into a topological group, even though our homotopical tools tell us that it "looks like a topological group".This is (a cleaned up version of) something I did during my second year of graduate school. It only took me about six years to post it.<a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/topology" class="mention hashtag" rel="nofollow noopener" target="_blank">#topology</a> <a href="https://mathstodon.xyz/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://mathstodon.xyz/tags/AbstractAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#AbstractAlgebra</a> <a href="https://mathstodon.xyz/tags/UniversalAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#UniversalAlgebra</a> <a href="https://mathstodon.xyz/tags/combinatorics" class="mention hashtag" rel="nofollow noopener" target="_blank">#combinatorics</a> <a href="https://mathstodon.xyz/tags/LatticeTheory" class="mention hashtag" rel="nofollow noopener" target="_blank">#LatticeTheory</a>

Charlotte AtenThe Cayley table below has an infinite amount of structure in the following sense: For any finite list of equations that hold for this operation, there will always be another equation which holds but is not a consequence of the given ones. In other words, the \(3\)-element magma below is not finitely based.\[ \begin{array}{r|ccc} & 0 & 1 & 2 \\ \hline 0 & 0 & 0 & 0 \\ 1 & 0 & 0 & 1 \\ 2 & 0 & 2 & 2 \end{array} \]In 1951, Lyndon showed that every \(2\)-element algebra is finitely based, so three is the smallest order of a non-finitely based algebra. This example was found by Murskiĭ in 1965.<a href="https://mathstodon.xyz/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://mathstodon.xyz/tags/AbstractAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#AbstractAlgebra</a> <a href="https://mathstodon.xyz/tags/UniversalAlgebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#UniversalAlgebra</a> <a href="https://mathstodon.xyz/tags/logic" class="mention hashtag" rel="nofollow noopener" target="_blank">#logic</a>

🇵🇸 Kebab Savoureux 🇵🇸I just started to learn some <a href="https://piaille.fr/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> yesterday because I'm learning some <a href="https://piaille.fr/tags/Haskell" class="mention hashtag" rel="nofollow noopener" target="_blank">#Haskell</a> and I had to use a semi group, which reminded me of some classes I took as a student. I'm currently learning about algebraic structures.So far, I read Wikipedia articles, they seem pretty good, but I'd be glad to take any recommendations about algebra and algebraic structures, if you have any :)

Joshua GrochowTag yourself.<a href="https://mathstodon.xyz/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener" target="_blank">#math</a> <a href="https://mathstodon.xyz/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#physics</a>

昜曰兴趣标签🏷️{<a href="https://mastodon.social/tags/%E5%8E%BB%E4%B8%AD%E5%BF%83%E5%8C%96" class="mention hashtag" rel="nofollow noopener" target="_blank">#去中心化</a> <a href="https://mastodon.social/tags/decentralisation" class="mention hashtag" rel="nofollow noopener" target="_blank">#decentralisation</a> <a href="https://mastodon.social/tags/%E4%B8%87%E8%B1%A1%E9%82%A6" class="mention hashtag" rel="nofollow noopener" target="_blank">#万象邦</a> <a href="https://mastodon.social/tags/mastodon" class="mention hashtag" rel="nofollow noopener" target="_blank">#mastodon</a> <a href="https://mastodon.social/tags/%E4%B9%B3%E9%BD%BF%E8%B1%A1" class="mention hashtag" rel="nofollow noopener" target="_blank">#乳齿象</a> <a href="https://mastodon.social/tags/%E9%82%A6%E8%81%94%E5%AE%87%E5%AE%99" class="mention hashtag" rel="nofollow noopener" target="_blank">#邦联宇宙</a> <a href="https://mastodon.social/tags/fediverse" class="mention hashtag" rel="nofollow noopener" target="_blank">#fediverse</a> <a href="https://mastodon.social/tags/%E8%A1%8C%E4%B8%BA%E5%85%B1%E9%80%9A" class="mention hashtag" rel="nofollow noopener" target="_blank">#行为共通</a> <a href="https://mastodon.social/tags/ActivityPub" class="mention hashtag" rel="nofollow noopener" target="_blank">#ActivityPub</a> <a href="https://mastodon.social/tags/%E6%97%85%E6%B8%B8" class="mention hashtag" rel="nofollow noopener" target="_blank">#旅游</a> <a href="https://mastodon.social/tags/tour" class="mention hashtag" rel="nofollow noopener" target="_blank">#tour</a> <a href="https://mastodon.social/tags/%E8%87%AA%E7%84%B6" class="mention hashtag" rel="nofollow noopener" target="_blank">#自然</a> <a href="https://mastodon.social/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#nature</a> <a href="https://mastodon.social/tags/%E7%A7%91%E6%8A%80" class="mention hashtag" rel="nofollow noopener" target="_blank">#科技</a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener" target="_blank">#science</a> <a href="https://mastodon.social/tags/technology" class="mention hashtag" rel="nofollow noopener" target="_blank">#technology</a> <a href="https://mastodon.social/tags/%E6%98%93%E7%BB%8F" class="mention hashtag" rel="nofollow noopener" target="_blank">#易经</a> <a href="https://mastodon.social/tags/IChing" class="mention hashtag" rel="nofollow noopener" target="_blank">#IChing</a> <a href="https://mastodon.social/tags/%E7%88%BB%E5%8D%A6" class="mention hashtag" rel="nofollow noopener" target="_blank">#爻卦</a> <a href="https://mastodon.social/tags/Yao" class="mention hashtag" rel="nofollow noopener" target="_blank">#Yao</a> <a href="https://mastodon.social/tags/Gua" class="mention hashtag" rel="nofollow noopener" target="_blank">#Gua</a> <a href="https://mastodon.social/tags/%E8%80%83%E5%8F%A4" class="mention hashtag" rel="nofollow noopener" target="_blank">#考古</a> <a href="https://mastodon.social/tags/archaeo" class="mention hashtag" rel="nofollow noopener" target="_blank">#archaeo</a> <a href="https://mastodon.social/tags/%E7%91%9C%E4%BC%BD" class="mention hashtag" rel="nofollow noopener" target="_blank">#瑜伽</a> <a href="https://mastodon.social/tags/yoga" class="mention hashtag" rel="nofollow noopener" target="_blank">#yoga</a> <a href="https://mastodon.social/tags/%E7%BC%96%E7%A8%8B" class="mention hashtag" rel="nofollow noopener" target="_blank">#编程</a> <a href="https://mastodon.social/tags/%E8%AF%AD%E8%A8%80" class="mention hashtag" rel="nofollow noopener" target="_blank">#语言</a> <a href="https://mastodon.social/tags/Programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#Programming</a> <a href="https://mastodon.social/tags/language" class="mention hashtag" rel="nofollow noopener" target="_blank">#language</a> <a href="https://mastodon.social/tags/%E6%91%84%E5%BD%B1" class="mention hashtag" rel="nofollow noopener" target="_blank">#摄影</a> <a href="https://mastodon.social/tags/Photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#Photography</a> <a href="https://mastodon.social/tags/%E6%95%B0%E5%AD%A6" class="mention hashtag" rel="nofollow noopener" target="_blank">#数学</a> <a href="https://mastodon.social/tags/math" class="mention hashtag" rel="nofollow noopener" target="_blank">#math</a> <a href="https://mastodon.social/tags/%E5%95%9A%E8%AE%BA" class="mention hashtag" rel="nofollow noopener" target="_blank">#啚论</a> <a href="https://mastodon.social/tags/%E5%9B%BE%E8%AE%BA" class="mention hashtag" rel="nofollow noopener" target="_blank">#图论</a> <a href="https://mastodon.social/tags/graphtheory" class="mention hashtag" rel="nofollow noopener" target="_blank">#graphtheory</a> <a href="https://mastodon.social/tags/%E5%93%B2%E5%AD%A6" class="mention hashtag" rel="nofollow noopener" target="_blank">#哲学</a> <a href="https://mastodon.social/tags/Philosophy" class="mention hashtag" rel="nofollow noopener" target="_blank">#Philosophy</a> <a href="https://mastodon.social/tags/%E9%80%BB%E8%BE%91" class="mention hashtag" rel="nofollow noopener" target="_blank">#逻辑</a> <a href="https://mastodon.social/tags/logic" class="mention hashtag" rel="nofollow noopener" target="_blank">#logic</a> <a href="https://mastodon.social/tags/%E4%BB%A3%E6%95%B0" class="mention hashtag" rel="nofollow noopener" target="_blank">#代数</a> <a href="https://mastodon.social/tags/algebra" class="mention hashtag" rel="nofollow noopener" target="_blank">#algebra</a> <a href="https://mastodon.social/tags/%E7%BB%84%E5%90%88%E5%AD%A6" class="mention hashtag" rel="nofollow noopener" target="_blank">#组合学</a> <a href="https://mastodon.social/tags/combinatorics" class="mention hashtag" rel="nofollow noopener" target="_blank">#combinatorics</a> <a href="https://mastodon.social/tags/%E4%BA%BA%E5%B7%A5%E6%99%BA%E8%83%BD" class="mention hashtag" rel="nofollow noopener" target="_blank">#人工智能</a> <a href="https://mastodon.social/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AI</a> <a href="https://mastodon.social/tags/%E8%87%AA%E5%8A%A8%E5%8C%96" class="mention hashtag" rel="nofollow noopener" target="_blank">#自动化</a> <a href="https://mastodon.social/tags/Automate" class="mention hashtag" rel="nofollow noopener" target="_blank">#Automate</a> <a href="https://mastodon.social/tags/%E6%9C%BA%E5%99%A8%E4%BA%BA" class="mention hashtag" rel="nofollow noopener" target="_blank">#机器人</a> <a href="https://mastodon.social/tags/Robot" class="mention hashtag" rel="nofollow noopener" target="_blank">#Robot</a> <a href="https://mastodon.social/tags/%E9%97%B2%E8%B0%88%E8%83%A1%E4%BE%83" class="mention hashtag" rel="nofollow noopener" target="_blank">#闲谈胡侃</a> <a href="https://mastodon.social/tags/chat" class="mention hashtag" rel="nofollow noopener" target="_blank">#chat</a> <a href="https://mastodon.social/tags/nonsense" class="mention hashtag" rel="nofollow noopener" target="_blank">#nonsense</a>}

Recent searches

Search options

Administered by:

Server stats:

#algebra