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Official account of the Lean theorem prover and programming language

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Professor of #Mathematics at the University of California, Los Angeles #UCLA (he/him).

","updated":"2026-04-23 13:09:05.011Z","user":"","username":"Terence Tao"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2026-01-01 00:21:48.665Z","domain":"mathstodon.xyz","followerCount":6597,"followers":"https://mathstodon.xyz/users/christianp/followers","following":"https://mathstodon.xyz/users/christianp/following","followingCount":3944,"icon":"https://media.mathstodon.xyz/accounts/avatars/000/000/001/original/b81854b430500fd9.png","id":"mq60cirmuvmcu51","inbox":"https://mathstodon.xyz/users/christianp/inbox","iri":"https://mathstodon.xyz/users/christianp","isLocal":false,"last_fetched":"2026-04-23 11:46:33.599Z","outbox":"https://mathstodon.xyz/users/christianp/outbox","preferred_username":"christianp","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7styOSrv0MtxMtLfyGqy\niUhAkywIDZKHIeXwBaQoIEM33miw5NJDZIpYazlvi5K1pUsTsFbOXhHFwG39i3yW\nbz7KJeAMp1gqHssmRnkABf1kbVOoY5g2xzMwuIx/yVqmzoYBlgpUDKjwWfHSCwjN\nqWLbsHYUSCoRWKoRzAHBfm5rhXE5BIbB2eaKCCjsIlXLOuRfRPF4x7s7+v+El9d8\nuMFnIivF6H4xQthp6cdfTSEKtNgcbzEYOFmBro12f1Svx98ncylPIxmyG2em6I3m\nVMnoIQf4t/z1dW/vQV1dh+f3QJlx8AMWX4pk2G1C6lT5ji+NST8RY+jFKTIxu4ke\ncQIDAQAB\n-----END PUBLIC KEY-----\n","published":"2017-04-12 00:00:00.000Z","summary":"

Mathematician, koala fan, mathstodon.xyz admin,
⅓ of https://aperiodical.com. He/him

","updated":"2026-04-23 11:46:33.600Z","user":"","username":"Christian Lawson-Perfect"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-12-28 00:34:26.259Z","domain":"social.bund.de","followerCount":28536,"followers":"https://social.bund.de/users/bsi/followers","following":"https://social.bund.de/users/bsi/following","followingCount":127,"icon":"https://social.bund.de/system/accounts/avatars/000/008/667/original/b2a083eaeae736b9.png","id":"zvb5a37omo0bwc1","inbox":"https://social.bund.de/users/bsi/inbox","iri":"https://social.bund.de/users/bsi","isLocal":false,"last_fetched":"2026-04-23 13:42:21.510Z","outbox":"https://social.bund.de/users/bsi/outbox","preferred_username":"bsi","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApebluEjSQrpqg9PQIn6m\nEONyK1cWMkPtk5sRoOzRBXPDX69bNycmevBTOe/cvW1AEikcG+IkFgu/EwtYsdj5\ndtIqM+yhLevMBbYt8qaAjp/0LmI6MtCjprVIHEbGyDtzOjqx71R2qy547LVcjWvC\njnvI9FAPWXUKRoGv5P70OuJR3ZzRPy88iXEIgCkon9AJBUssBPiD1B/RJVn3m6u/\nyY3nYxDUhrSydrIs9F0VIN9E0Z/qVTFZJCCgOKjh9sJDT8PeG/Tn0JhRkGpT3tQO\n/y6EIJYYWsbyhKpe2OSBT2l/Dupil1Czkhlem2r2JVDyiaNaJTp09c+CH2Triff1\nBwIDAQAB\n-----END PUBLIC KEY-----\n","published":"2021-03-08 00:00:00.000Z","summary":"

🛡️ Bundesamt für Sicherheit in der Informationstechnik 💻️ Deutschlands Cyber-Sicherheitsbehörde 🤝 Wir sind das #TeamBSI

","updated":"2026-04-23 13:42:21.510Z","user":"","username":"BSI"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-12-28 03:53:24.223Z","domain":"social.bund.de","followerCount":7806,"followers":"https://social.bund.de/users/destatis/followers","following":"https://social.bund.de/users/destatis/following","followingCount":38,"icon":"https://social.bund.de/system/accounts/avatars/109/263/320/162/697/475/original/2930b98cb1518eeb.png","id":"dqwwdxt1zglcw15","inbox":"https://social.bund.de/users/destatis/inbox","iri":"https://social.bund.de/users/destatis","isLocal":false,"last_fetched":"2026-04-23 13:31:56.984Z","outbox":"https://social.bund.de/users/destatis/outbox","preferred_username":"destatis","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnnJjqjOr6/1OrlSvEOBi\ntLT5XYhMXVhAKQ8UxApmEap0E62MUs4w6Bhj9HnUKmxB1177zhDeY+CiUgWwqKwf\nSGk4c+cRHYO4bZZvWDPLSK/J35TZFjK7pUsuPVaRJuGj75xvin3GVpROE74sKz5c\nWJt+Uuyi5pcf43O/pDiupt5ziKV7HePGt5ulDZSNIUvVvsl1JWF3ZXuX8kOXmHbC\nQL+z/jZb2pqe80UwVmxL3QQpPNGuoM5t+VSlODjB71rTdOiD9tGlZqVaGnkQMquC\nyGsLhNNHri0LHe3U8uf5MGpGWNYA9WP5z5X63MLca6RzCoO9WRzhqevQSn+ujy2d\nFwIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-10-31 00:00:00.000Z","summary":"

Herzlich willkommen auf dem offiziellen Account des Statistischen Bundesamts.

","updated":"2026-04-23 13:31:56.984Z","user":"","username":"Statistisches Bundesamt"}],"page":1,"perPage":10,"totalItems":0,"totalPages":0}

Algebro

Following