{"items":[{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2026-03-11 03:03:38.883Z","domain":"mathtod.online","followerCount":76,"followers":"https://mathtod.online/users/masarutheremin/followers","following":"https://mathtod.online/users/masarutheremin/following","followingCount":34,"icon":"https://f005.backblazeb2.com/file/mathtodonassets/accounts/avatars/109/294/836/067/633/730/original/b6b43508887c272a.jpeg","id":"kb8i3l2cmfck3be","inbox":"https://mathtod.online/users/masarutheremin/inbox","iri":"https://mathtod.online/users/masarutheremin","isLocal":false,"last_fetched":"2026-04-13 02:37:49.289Z","outbox":"https://mathtod.online/users/masarutheremin/outbox","preferred_username":"masarutheremin","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq+Y8Ve678WIhBuA8HYZ4\nWQE4XgK216wSn8ZAur4tNQ6CNtKi/3zb+BTbjIpL10PBk05MxyJC5sroVjzR/shN\njhsjuAGHy4U4Og4tmWG92Gpd6ME/dAJjmst9IviXRPB0LFpp0ZgvL8vKVZOAA1Qr\nYHXpuLDMEehCumVplcavQ92JlMeJwVycdJYLke7tewI8/ZUoc0mFhrgKmnayj7Vn\nXNc5iUT/S3DPppW9C1f4n1MuGK4YPLR0eYS2oSakDk8lUHehQc3Cf22saW8JkZlR\n6XS1DQMj+0Q8I+DQUxSFQy3Sks1NpSchuA8gQjhhqubse4Z2PA/SevPfg4V3Zap+\nbQIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-11-06 00:00:00.000Z","summary":"

著書「論理と集合から始める数学の基礎」（日本評論社）、「数理論理学」（森北出版）訳書「論理学への数学的手引き（エンダートン）」（1月と7月）

","updated":"2026-04-13 02:37:49.289Z","user":"","username":"Masaru Kada"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2026-01-26 15:43:13.725Z","domain":"mathtod.online","followerCount":107,"followers":"https://mathtod.online/users/ytb_at_twt/followers","following":"https://mathtod.online/users/ytb_at_twt/following","followingCount":66,"icon":"https://f005.backblazeb2.com/file/mathtodonassets/accounts/avatars/109/365/427/932/221/241/original/11a5e36cb1a0bb25.jpg","id":"9xitqyo58jzvb23","inbox":"https://mathtod.online/users/ytb_at_twt/inbox","iri":"https://mathtod.online/users/ytb_at_twt","isLocal":false,"last_fetched":"2026-04-13 02:37:49.623Z","outbox":"https://mathtod.online/users/ytb_at_twt/outbox","preferred_username":"ytb_at_twt","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0+kFlqqHDu7JJOn5wi0Z\nRSV+BfkMFJiCpgQt6LGKUmtM3hEJZd9cvq4ulCbAXbeUZ04gTwihlO3YZHbpgxYX\nP8F2SrTLWsggGKIpJJnsbgNDdan4j4XawqNLxbMcnlFm2Q5tryzm4+LjNPPPfgkb\n/NLxQf/BS4hzw5OF80CRJedviSGiqn3/hEP8GY0blkSqlvUCqTLjxInXo56jQ1TT\nKl1c6UID63nMDtJzx0G/EubtNYgYQvdAVk07TWX3uJ1iUMiv9YUp8K7tOiqVI4vG\nwNb8+/eZ1dXW/QM1ckDk2GPMwUnSN8n9Jzgy9TokbpeOHUwxrveklVKLjB5uyY/1\nMwIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-11-18 00:00:00.000Z","summary":"

a logician (for more details, see my website)
https://researchmap.jp/ytb/?lang=english

","updated":"2026-04-13 02:37:49.624Z","user":"","username":"ytb"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2026-03-11 03:03:07.904Z","domain":"mathtod.online","followerCount":114,"followers":"https://mathtod.online/users/MageManager/followers","following":"https://mathtod.online/users/MageManager/following","followingCount":135,"icon":"https://f005.backblazeb2.com/file/mathtodonassets/accounts/avatars/000/036/919/original/3bdb178932303c2a.jpg","id":"scyi606bzl3r9vr","inbox":"https://mathtod.online/users/MageManager/inbox","iri":"https://mathtod.online/users/MageManager","isLocal":false,"last_fetched":"2026-04-13 02:37:50.046Z","outbox":"https://mathtod.online/users/MageManager/outbox","preferred_username":"MageManager","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx459irodEyqp466c1g26\nhUv3CjZ+Tt9kDCefZPzLMnpmtkhhJoFFPYOyUqQzQ3/x1R9FHMFqtHjhjPNuDuXB\n+gZWC8aVZhYMzSsNit4+3BboEB4/ey3qfhbU/O5nzEPAtuVAZ2T/o9cVsZlpwK8T\nn2TySGP4dkfo8EWglGPuZR/Hk8b1XaAcYvPSlw0zeEE8vwxMbrv3GiRkUpne4mrI\nYry6NSKUe5TaO5YKnCt03g9lLyhLyZ9xGpYeRKqMMTHxR9QvBA2J3V9wQHzJbbsH\nQ6avOpOK9b2S7o0Q7s/LNn3AIeyFm2RWuh2a6FOKc3SBnzrfOn7RiiuIUD6865F2\newIDAQAB\n-----END PUBLIC KEY-----\n","published":"2018-10-09 00:00:00.000Z","summary":"

エニグマ暗号解読がライフテーマです。数学は嫌いでしたが、30歳から集合論、群論、結び目理論、組合せ論を主に。あれからもう26年も経つのか。

","updated":"2026-04-13 02:37:50.046Z","user":"","username":"まげ店長"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2026-04-10 22:34:14.172Z","domain":"mathtod.online","followerCount":171,"followers":"https://mathtod.online/users/fish/followers","following":"https://mathtod.online/users/fish/following","followingCount":164,"icon":"https://f005.backblazeb2.com/file/mathtodonassets/accounts/avatars/000/000/406/original/ba4c7ddc219ba900.jpeg","id":"xqj3l1d8e2x8a5y","inbox":"https://mathtod.online/users/fish/inbox","iri":"https://mathtod.online/users/fish","isLocal":false,"last_fetched":"2026-04-13 02:37:52.975Z","outbox":"https://mathtod.online/users/fish/outbox","preferred_username":"fish","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApKp4oMdm7GMUMhyUB3cb\nqRWqv6vl3Nsda1usgPssM/WHauZBszp5v0n8ZkLwN8vC2fC3QHea/8My7tNtf7Ws\nqj+7ZGEv3+AJ8qMDeHeo2WBg8SCbluZRVenxrcPEuRWL35mRd/Y5wSGt8yBtZDFz\nHLf4EA71a/TK8Yv30G5Iu1L2QVsTFXUgtQ/TM2RLJLOPkCbk1rCCLh1c1loWqeIQ\ntri87CMtoiRKNgE+zdcyA+aVLtJ4vUpPiczdrwE4wLeU6onC5I0ZMKxfG7mXJBo4\nbjqLkSBe5w2fXnm5PcHw5q35sNVoufcvK3BHbkL8B0GpUykszetmvtmp+FNtJ6J5\nOwIDAQAB\n-----END PUBLIC KEY-----\n","published":"2017-04-24 00:00:00.000Z","summary":"

ふぃっしゅ数のふぃっしゅっしゅです /
巨大数論 http://gyafun.jp/ln/ /
数式プレビュー http://gyafun.jp/ln/MathJax.html

","updated":"2026-04-13 02:37:52.976Z","user":"","username":"ふぃっしゅっしゅ @ $巨大数^{F_7}$"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2026-03-18 18:59:48.509Z","domain":"mathtod.online","followerCount":61,"followers":"https://mathtod.online/users/Alwe_Logic/followers","following":"https://mathtod.online/users/Alwe_Logic/following","followingCount":54,"icon":"https://f005.backblazeb2.com/file/mathtodonassets/accounts/avatars/109/364/606/237/032/726/original/97f440b182430e5e.jpg","id":"tp5i9arvtit3tme","inbox":"https://mathtod.online/users/Alwe_Logic/inbox","iri":"https://mathtod.online/users/Alwe_Logic","isLocal":false,"last_fetched":"2026-04-13 02:37:53.284Z","outbox":"https://mathtod.online/users/Alwe_Logic/outbox","preferred_username":"Alwe_Logic","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAybnnt4Z1qSNpJTWOFMw7\n+WHXGYVrklGRbAeFlq7K8I23s0Bo4K71NmaW7wI7BGMyCHnrvMdmsmT0gGzyfxwR\nLifzH2FVxUVpnlfEihx6gjcT3U0VHTLRm5ZFI6CuBqV0ScASyAdtJmNV0+EDBzY+\n9tHOI07ai+IquoEpl1J5Bw6akxYfvbyXsBuC+/wvkK+la5XXaBWkIlZ1oj5pBn0F\naegmR4+AKxVPVITa4Zxt0qpRej4lH+kfpG3m14gaOD0+qgGVyPRitvFIff0HNn5N\n/XVhkQ+bhUUVSNVIUa/FWfA2EhHUc81d4iNeXSU1zbtQob+isJ43ubPBWbG8QJEh\n4QIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-11-18 00:00:00.000Z","summary":"","updated":"2026-04-13 02:37:53.285Z","user":"","username":"Alwe"}],"page":1,"perPage":10,"totalItems":2,"totalPages":1}

MARU

Following