56,966 blogs · [ { "id": "01a0deba-e925-73b9-a5b6-023750b8cd28", "title": "On internal natural isomorphisms and topological categories", "url": "https://thehighergeometer.wordpress.com/2026/09/26/on-internal-natural-isomorphisms-and-topological-categories/", "published_at": "2026-09-26T10:28:52+00:00" }, { "id": "01a087ec-f1a6-73c6-84f7-cb72e5556a9b", "title": "PSA: a category satisfying all but the smallness condition from Giraud’s theorem…", "url": "https://thehighergeometer.wordpress.com/2025/12/05/psa-a-category-satisfying-all-but-the-smallness-condition-from-girauds-theorem/", "published_at": "2025-12-05T06:32:21+00:00" }, { "id": "01a087ec-f1a6-73c6-84f7-cb72e56c8fc7", "title": "An example of a presheaf without an associated sheaf – UPDATED", "url": "https://thehighergeometer.wordpress.com/2025/12/01/an-example-of-a-presheaf-without-an-associated-sheaf/", "published_at": "2025-12-01T00:29:38+00:00" }, { "id": "01a087ec-f1a6-73c6-84f7-cb72e62e3718", "title": "A game strategy that 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"id": "01a0df3a-9b3b-72db-96a6-34ca2a3ab99b", "title": "Want to see the real secrets of set theory in YouTube format?", "url": "https://thehighergeometer.wordpress.com/2020/09/08/want-to-see-the-real-secrets-of-set-theory-in-youtube-format/", "published_at": "2020-09-07T23:47:48+00:00" }, { "id": "01a0df3a-9b3b-72db-96a6-34ca2a64cbe1", "title": "MathOverflow links in referee reports", "url": "https://thehighergeometer.wordpress.com/2020/09/06/mathoverflow-links-in-referee-reports/", "published_at": "2020-09-06T00:46:47+00:00" }, { "id": "01a0df3a-9b3b-72db-96a6-34ca2b4e6f18", "title": "Initiality conjecture for full Martin-Löf type theory", "url": "https://thehighergeometer.wordpress.com/2020/09/04/initiality-conjecture-for-full-martin-lof-type-theory/", "published_at": "2020-09-04T01:21:55+00:00" }, { "id": "01a0df3a-9b3b-72db-96a6-34ca2c3b3465", "title": "She is asking the right questions", "url": "https://thehighergeometer.wordpress.com/2020/08/27/she-is-asking-the-right-questions/", "published_at": "2020-08-27T07:28:56+00:00" }, { "id": "01a0df3a-9b3b-72db-96a6-34ca2cfd0f35", "title": "Another good maths journal, this time in analysis", "url": "https://thehighergeometer.wordpress.com/2020/08/19/another-good-maths-journal-this-time-in-analysis/", "published_at": "2020-08-19T10:19:00+00:00" }, { "id": "01a0df3a-9b3b-72db-96a6-34ca2dc3d478", "title": "Solving restricted quadratic equations for natural number solutions is NP-complete", "url": "https://thehighergeometer.wordpress.com/2020/08/07/solving-restricted-quadratic-equations-for-natural-number-solutions-is-np-complete/", "published_at": "2020-08-07T03:33:06+00:00" }, { "id": "01a0df3a-9b3b-72db-96a6-34ca2dd72f37", "title": "Translations of technical words and phrases into French", "url": "https://thehighergeometer.wordpress.com/2020/08/05/translations-of-technical-words-and-phrases-into-french/", "published_at": "2020-08-05T10:55:23+00:00" }, { "id": "01a0df4e-5182-706c-a211-9c91f61af01d", "title": "I feel accepted", "url": "https://thehighergeometer.wordpress.com/2020/08/04/i-feel-accepted/", "published_at": "2020-08-03T23:49:47+00:00" }, { "id": "01a0df4e-5182-706c-a211-9c91f64191a2", "title": "Small observations on fields in Lean", "url": "https://thehighergeometer.wordpress.com/2020/07/06/small-observations-on-fields-in-lean/", "published_at": "2020-07-06T02:23:46+00:00" }, { "id": "01a0df4e-5182-706c-a211-9c91f6acd996", "title": "Thank you, kind referee! :-)", "url": "https://thehighergeometer.wordpress.com/2020/07/04/thank-you-kind-referee/", "published_at": "2020-07-04T11:38:07+00:00" }, { "id": "01a0df4e-5182-706c-a211-9c91f6ea48b5", "title": "Two recent research theses from my department", "url": "https://thehighergeometer.wordpress.com/2020/06/24/two-recent-research-theses-from-my-department/", "published_at": "2020-06-24T10:11:58+00:00" }, { "id": "01a0df4e-5182-706c-a211-9c91f6f026ab", "title": "I’m having a long break from Twitter", "url": "https://thehighergeometer.wordpress.com/2020/06/15/im-having-a-long-break-from-twitter/", "published_at": "2020-06-15T01:20:19+00:00" }, { "id": "01a0df4e-5182-706c-a211-9c91f75cbf95", "title": "MIT says no to Elsevier", "url": "https://thehighergeometer.wordpress.com/2020/06/13/mit-says-no-to-elsevier/", "published_at": "2020-06-13T03:44:05+00:00" }, { "id": "01a0df4e-5182-706c-a211-9c91f84a3776", "title": "Dupuy and Hilado’s work on unravelling Mochizuki", "url": "https://thehighergeometer.wordpress.com/2020/04/27/dupuy-and-hilados-work-on-unravelling-mochizuki/", "published_at": "2020-04-27T02:48:06+00:00" }, { "id": "01a0df4e-5182-706c-a211-9c91f9439b67", "title": "M5-branes and Hypothesis H", "url": "https://thehighergeometer.wordpress.com/2020/03/24/m5-branes-and-hypothesis-h/", "published_at": "2020-03-24T00:29:53+00:00" }, { "id": "01a0df4e-5182-706c-a211-9c91f95facb4", "title": "A CV, I guess", "url": "https://thehighergeometer.wordpress.com/2020/03/21/a-cv-i-guess/", "published_at": "2020-03-20T20:08:41+00:00" }, { "id": "01a0df4e-5182-706c-a211-9c91f9997252", "title": "Small ideas on not-quite-covering maps", "url": "https://thehighergeometer.wordpress.com/2020/02/19/small-ideas-on-not-quite-covering-maps/", "published_at": "2020-02-19T06:41:40+00:00" }, { "id": "01a0df74-7669-70f3-a695-b904d5aed8b4", "title": "AustMS 2019 talks", "url": "https://thehighergeometer.wordpress.com/2019/12/10/austms-2019-talks/", "published_at": "2019-12-10T03:45:54+00:00" }, { "id": "01a0df74-7669-70f3-a695-b904d5f10270", "title": "Terry Tao’s first paper: “Perfect numbers”", "url": "https://thehighergeometer.wordpress.com/2019/11/27/terry-taos-first-paper-perfect-numbers/", "published_at": "2019-11-27T12:24:57+00:00" }, { "id": "01a0df74-7669-70f3-a695-b904d6c19b22", "title": "Diagonal arguments: once more with feeling", "url": "https://thehighergeometer.wordpress.com/2019/10/03/diagonals-once-more-with-feeling/", "published_at": "2019-10-03T13:13:31+00:00" }, { "id": "01a0df74-7669-70f3-a695-b904d6d29d92", "title": "The only curve with a unique focus is the parabola", "url": "https://thehighergeometer.wordpress.com/2019/09/23/the-only-curve-with-a-unique-focus-is-the-parabola/", "published_at": "2019-09-23T03:01:42+00:00" }, { "id": "01a0df74-7669-70f3-a695-b904d6e0a4e7", "title": "Third solution to writing 3 as a sum of three third powers!", "url": "https://thehighergeometer.wordpress.com/2019/09/20/third-solution-to-writing-3-as-a-sum-of-three-third-powers/", "published_at": "2019-09-20T11:40:26+00:00" }, { "id": "01a0df74-7669-70f3-a695-b904d6e3685a", "title": "Talk notes from Groupoids, Graphs and Algebras", "url": "https://thehighergeometer.wordpress.com/2019/07/02/talk-notes-from-groupoids-graphs-and-algebras/", "published_at": "2019-07-02T07:54:55+00:00" }, { "id": "01a0df74-7669-70f3-a695-b904d77387b0", "title": "Believing in (in-)consistency", "url": "https://thehighergeometer.wordpress.com/2019/06/20/believing-in-in-consistency/", "published_at": "2019-06-20T07:50:43+00:00" }, { "id": "01a0df74-7669-70f3-a695-b904d79784e8", "title": "Two Ada books", "url": "https://thehighergeometer.wordpress.com/2019/06/11/two-ada-books/", "published_at": "2019-06-11T06:06:55+00:00" }, { "id": "01a0df74-7669-70f3-a695-b904d7a7dc1a", "title": "No rational number squares to 2, after D. Zeilberger", "url": "https://thehighergeometer.wordpress.com/2019/05/19/no-rational-number-squares-to-2-after-d-zeilberger/", "published_at": "2019-05-19T13:50:56+00:00" }, { "id": "01a0df74-7669-70f3-a695-b904d8583cb8", "title": "Joyal: Arithmetisation dans le topos", "url": "https://thehighergeometer.wordpress.com/2019/05/08/joyal-arithmetisation-dans-le-topos/", "published_at": "2019-05-07T22:22:26+00:00" }, { "id": "01a0df89-5d07-736b-b12b-5dd2f63ae862", "title": "Dupuy: computations conditional on IUT3 Corollary 3.12", "url": "https://thehighergeometer.wordpress.com/2019/05/02/dupuy-computations-conditional-on-iut3-corollary-3-12/", "published_at": "2019-05-02T11:23:13+00:00" }, { "id": "01a0df89-5d07-736b-b12b-5dd2f67aaf79", "title": "Sans serif Hebrew", "url": "https://thehighergeometer.wordpress.com/2019/04/28/sans-serif-hebrew/", "published_at": "2019-04-28T12:46:55+00:00" }, { "id": "01a0df89-5d07-736b-b12b-5dd2f6a2f26c", "title": "ANZAC day", "url": "https://thehighergeometer.wordpress.com/2019/04/25/anzac-day/", "published_at": "2019-04-25T00:27:34+00:00" }, { "id": "01a0df89-5d07-736b-b12b-5dd2f76c20ae", "title": "Norway says goodbye to Elsevier", "url": "https://thehighergeometer.wordpress.com/2019/03/16/norway-says-goodbye-to-elsevier/", "published_at": "2019-03-16T00:19:10+00:00" }, { "id": "01a0df89-5d07-736b-b12b-5dd2f785f62e", "title": "SDT book review done", "url": "https://thehighergeometer.wordpress.com/2019/03/13/sdt-book-review-done/", "published_at": "2019-03-13T03:45:54+00:00" }, { "id": "01a0df89-5d07-736b-b12b-5dd2f7a232ae", "title": "Teaser for the new algebra/combinatorics paper", "url": "https://thehighergeometer.wordpress.com/2019/03/07/teaser-for-the-new-algebra-combinatorics-paper/", "published_at": "2019-03-07T11:36:28+00:00" }, { "id": "01a0df89-5d07-736b-b12b-5dd2f7a2f1bf", "title": "Now on Twitter, almost", "url": "https://thehighergeometer.wordpress.com/2019/03/03/now-on-twitter-almost/", "published_at": "2019-03-03T11:35:21+00:00" }, { "id": "01a0df89-5d07-736b-b12b-5dd2f82c5d1a", "title": "Something I wrote…", "url": "https://thehighergeometer.wordpress.com/2019/03/02/something-i-wrote/", "published_at": "2019-03-02T00:56:26+00:00" }, { "id": "01a0df89-5d07-736b-b12b-5dd2f8842196", "title": "Rings", "url": "https://thehighergeometer.wordpress.com/2019/03/01/rings/", "published_at": "2019-03-01T04:57:43+00:00" }, { "id": "01a0df89-5d07-736b-b12b-5dd2f961c91b", "title": "The entire University of California system ditches Elsevier", "url": "https://thehighergeometer.wordpress.com/2019/03/01/the-entire-university-of-california-system-ditches-elsevier/", "published_at": "2019-03-01T04:56:42+00:00" } ] posts Claim your blog
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