ActivityPub Viewer

A small tool to view real-world ActivityPub objects as JSON! Enter a URL or username from Mastodon or a similar service below, and we'll send a request with the right Accept header to the server to view the underlying object.

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{ "@context": [ "https://www.w3.org/ns/activitystreams", { "ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" }, "Hashtag": "as:Hashtag" } ], "id": "https://mathstodon.xyz/users/seano/outbox?page=true", "type": "OrderedCollectionPage", "next": "https://mathstodon.xyz/users/seano/outbox?max_id=113154100280370651&page=true", "prev": "https://mathstodon.xyz/users/seano/outbox?min_id=113361394901978045&page=true", "partOf": "https://mathstodon.xyz/users/seano/outbox", "orderedItems": [ { "id": "https://mathstodon.xyz/users/seano/statuses/113361394901978045/activity", "type": "Announce", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-24T08:13:32Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/Felienne", "https://mathstodon.xyz/users/seano/followers" ], "object": "https://mastodon.social/users/Felienne/statuses/113359008979100150" }, { "id": "https://mathstodon.xyz/users/seano/statuses/113361072098985083/activity", "type": "Announce", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-24T06:51:27Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/carloangiuli", "https://mathstodon.xyz/users/seano/followers" ], "object": "https://mathstodon.xyz/users/carloangiuli/statuses/113358485817870155" }, { "id": "https://mathstodon.xyz/users/seano/statuses/113284919820605491/activity", "type": "Announce", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-10T20:04:55Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/carloangiuli", "https://mathstodon.xyz/users/seano/followers" ], "object": "https://mathstodon.xyz/users/carloangiuli/statuses/113284569256463504" }, { "id": "https://mathstodon.xyz/users/seano/statuses/113253048819790789/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-05T04:59:42Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers", "https://mathstodon.xyz/users/jonmsterling" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113253048819790789", "type": "Note", "summary": null, "inReplyTo": "https://mathstodon.xyz/users/jonmsterling/statuses/113248007332974063", "published": "2024-10-05T04:59:42Z", "url": "https://mathstodon.xyz/@seano/113253048819790789", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers", "https://mathstodon.xyz/users/jonmsterling" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113253048819790789", "inReplyToAtomUri": "https://mathstodon.xyz/users/jonmsterling/statuses/113248007332974063", "conversation": "tag:mathstodon.xyz,2024-10-03:objectId=117213039:objectType=Conversation", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@jonmsterling\" class=\"u-url mention\">@<span>jonmsterling</span></a></span> Oh huh, I haven&#39;t heard much about stoups! I guess my motivations for this rule are that it seems clear from a pedagogical perspective, and that it doesn&#39;t actually seem to get in the way of the type theory at all. But I am thinking about it truly as a name, so thinking about this as essentially using a stoup might offer some neat insights! I&#39;ll have to look into them more.</p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@jonmsterling\" class=\"u-url mention\">@<span>jonmsterling</span></a></span> Oh huh, I haven&#39;t heard much about stoups! I guess my motivations for this rule are that it seems clear from a pedagogical perspective, and that it doesn&#39;t actually seem to get in the way of the type theory at all. But I am thinking about it truly as a name, so thinking about this as essentially using a stoup might offer some neat insights! I&#39;ll have to look into them more.</p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://mathstodon.xyz/users/jonmsterling", "name": "@jonmsterling" } ], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113253048819790789/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113253048819790789/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113253048819790789/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113253048819790789/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113253048819790789/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113247918149859550/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-04T07:14:54Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers", "https://mathstodon.xyz/users/jonmsterling" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113247918149859550", "type": "Note", "summary": null, "inReplyTo": "https://mathstodon.xyz/users/jonmsterling/statuses/113247374893982974", "published": "2024-10-04T07:14:54Z", "url": "https://mathstodon.xyz/@seano/113247918149859550", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers", "https://mathstodon.xyz/users/jonmsterling" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113247918149859550", "inReplyToAtomUri": "https://mathstodon.xyz/users/jonmsterling/statuses/113247374893982974", "conversation": "tag:mathstodon.xyz,2024-10-03:objectId=117213039:objectType=Conversation", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@jonmsterling\" class=\"u-url mention\">@<span>jonmsterling</span></a></span> Yep! Except that in this case, the name of the variable of type A is forced to be x.1, which isn’t something that usually happens in type theory presentations.</p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@jonmsterling\" class=\"u-url mention\">@<span>jonmsterling</span></a></span> Yep! Except that in this case, the name of the variable of type A is forced to be x.1, which isn’t something that usually happens in type theory presentations.</p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://mathstodon.xyz/users/jonmsterling", "name": "@jonmsterling" } ], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113247918149859550/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113247918149859550/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113247918149859550/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113247918149859550/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113247918149859550/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113246785844829498/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-04T02:26:57Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers", "https://hci.social/users/chrisamaphone" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113246785844829498", "type": "Note", "summary": null, "inReplyTo": "https://hci.social/users/chrisamaphone/statuses/113245660871269902", "published": "2024-10-04T02:26:57Z", "url": "https://mathstodon.xyz/@seano/113246785844829498", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers", "https://hci.social/users/chrisamaphone" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113246785844829498", "inReplyToAtomUri": "https://hci.social/users/chrisamaphone/statuses/113245660871269902", "conversation": "tag:mathstodon.xyz,2024-10-03:objectId=117213039:objectType=Conversation", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://hci.social/@chrisamaphone\" class=\"u-url mention\">@<span>chrisamaphone</span></a></span> Oh cool! This gave off a lot of ominous vibes to the people I showed it to, so I’m glad it’s not actually that unusual :p Do you have a link to the sequent calculus thing by Frank? I tried searching for it a bit but came up empty. No worries if not though!</p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://hci.social/@chrisamaphone\" class=\"u-url mention\">@<span>chrisamaphone</span></a></span> Oh cool! This gave off a lot of ominous vibes to the people I showed it to, so I’m glad it’s not actually that unusual :p Do you have a link to the sequent calculus thing by Frank? I tried searching for it a bit but came up empty. No worries if not though!</p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://hci.social/users/chrisamaphone", "name": "@chrisamaphone@hci.social" } ], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113246785844829498/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113246785844829498/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113246785844829498/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113246785844829498/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113246785844829498/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113245254761060670/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-03T19:57:34Z", "to": [ "https://mathstodon.xyz/users/seano/followers" ], "cc": [ "https://www.w3.org/ns/activitystreams#Public", "https://fedi.ahfrom.synology.me/users/ahfrom" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113245254761060670", "type": "Note", "summary": null, "inReplyTo": "https://fedi.ahfrom.synology.me/objects/5e5edc79-e5bb-4186-8815-d25442e6638e", "published": "2024-10-03T19:57:34Z", "url": "https://mathstodon.xyz/@seano/113245254761060670", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://mathstodon.xyz/users/seano/followers" ], "cc": [ "https://www.w3.org/ns/activitystreams#Public", "https://fedi.ahfrom.synology.me/users/ahfrom" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113245254761060670", "inReplyToAtomUri": "https://fedi.ahfrom.synology.me/objects/5e5edc79-e5bb-4186-8815-d25442e6638e", "conversation": "https://fedi.ahfrom.synology.me/contexts/2bb7104e-3a14-4a86-9f48-435481d99aa7", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://fedi.ahfrom.synology.me/users/ahfrom\" class=\"u-url mention\">@<span>ahfrom</span></a></span> I miss this :( subtitles are now required for me to understand anything being said in today&#39;s shows and movies</p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://fedi.ahfrom.synology.me/users/ahfrom\" class=\"u-url mention\">@<span>ahfrom</span></a></span> I miss this :( subtitles are now required for me to understand anything being said in today&#39;s shows and movies</p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://fedi.ahfrom.synology.me/users/ahfrom", "name": "@ahfrom@fedi.ahfrom.synology.me" } ], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113245254761060670/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113245254761060670/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113245254761060670/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113245254761060670/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113245254761060670/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113245072862762551/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-03T19:11:19Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113245072862762551", "type": "Note", "summary": null, "inReplyTo": "https://mathstodon.xyz/users/seano/statuses/113244990484680024", "published": "2024-10-03T19:11:19Z", "url": "https://mathstodon.xyz/@seano/113245072862762551", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113245072862762551", "inReplyToAtomUri": "https://mathstodon.xyz/users/seano/statuses/113244990484680024", "conversation": "tag:mathstodon.xyz,2024-10-03:objectId=117213039:objectType=Conversation", "content": "<p>To be clear, this is meant to be read as a bottom-to-top backwards-reasoning rule. The vision I have is that these kinds of name constraints flow upwards, so there&#39;s never any issue with incompatible constraints. I think any left rule for negative types should be amenable to this kind of approach, including function application which might be even more cursed lmao.</p>", "contentMap": { "en": "<p>To be clear, this is meant to be read as a bottom-to-top backwards-reasoning rule. The vision I have is that these kinds of name constraints flow upwards, so there&#39;s never any issue with incompatible constraints. I think any left rule for negative types should be amenable to this kind of approach, including function application which might be even more cursed lmao.</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113245072862762551/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113245072862762551/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113245072862762551/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113245072862762551/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113245072862762551/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113244990484680024/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-03T18:50:22Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113244990484680024", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-10-03T18:50:22Z", "url": "https://mathstodon.xyz/@seano/113244990484680024", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113244990484680024", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2024-10-03:objectId=117213039:objectType=Conversation", "content": "<p>Had a cursed idea for a type theory rule. Note that 𝑥.1 is the name of the variable of type A, not an expression!</p><p>Everyone I&#39;ve shown this to has been uneasy about it lol, but I really like it! It simplifies terms while letting the variable rule/identity rule still be admissible. And I think pedagogically it&#39;s helpful!</p>", "contentMap": { "en": "<p>Had a cursed idea for a type theory rule. Note that 𝑥.1 is the name of the variable of type A, not an expression!</p><p>Everyone I&#39;ve shown this to has been uneasy about it lol, but I really like it! It simplifies terms while letting the variable rule/identity rule still be admissible. And I think pedagogically it&#39;s helpful!</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/113/244/814/808/262/977/original/ecb958d1bef428f9.png", "name": "Type Theory derivation rule that looks like the left first projection rule for products in sequent calculus, with the name of the variable of type A times B being x, except that the name of the variable of type A introduced in the context by the rule is forced to be x dot 1.", "blurhash": "U7SY{qM{?b%Mj[ayRjRj~qRjfQWB-;t7t7t7", "focalPoint": [ 0, 0 ], "width": 1371, "height": 297 } ], "tag": [], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113244990484680024/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113244990484680024/replies?min_id=113245072862762551&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113244990484680024/replies", "items": [ "https://mathstodon.xyz/users/seano/statuses/113245072862762551" ] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113244990484680024/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113244990484680024/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113239896117948246/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-02T21:14:48Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113239896117948246", "type": "Note", "summary": null, "inReplyTo": "https://mathstodon.xyz/users/seano/statuses/113236221954013933", "published": "2024-10-02T21:14:48Z", "url": "https://mathstodon.xyz/@seano/113239896117948246", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113239896117948246", "inReplyToAtomUri": "https://mathstodon.xyz/users/seano/statuses/113236221954013933", "conversation": "tag:mathstodon.xyz,2024-10-02:objectId=116972450:objectType=Conversation", "content": "<p>Update: The meds worked!!! Over the next few weeks I&#39;ll titrate up to stronger and stronger doses, but even at just the starting dose, last night felt like the best night of sleep I&#39;ve had in a while! </p><p>I did wake up for like ten minutes four hours in feeling extremely energetic, but then the extended release dose hit and I got knocked out again lol. And I&#39;m sure as the dosage increases that interim period will disappear. So all this is really good!! And it leaves me super hopeful for the future! :)</p>", "contentMap": { "en": "<p>Update: The meds worked!!! Over the next few weeks I&#39;ll titrate up to stronger and stronger doses, but even at just the starting dose, last night felt like the best night of sleep I&#39;ve had in a while! </p><p>I did wake up for like ten minutes four hours in feeling extremely energetic, but then the extended release dose hit and I got knocked out again lol. And I&#39;m sure as the dosage increases that interim period will disappear. So all this is really good!! And it leaves me super hopeful for the future! :)</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113239896117948246/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113239896117948246/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113239896117948246/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113239896117948246/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113239896117948246/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113236221954013933/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-10-02T05:40:25Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113236221954013933", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-10-02T05:40:25Z", "url": "https://mathstodon.xyz/@seano/113236221954013933", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113236221954013933", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2024-10-02:objectId=116972450:objectType=Conversation", "content": "<p>Taking my first dose of Lumryz tonight!!! Hell of a road to get here, but it’s finally time. Wish me luck :) <a href=\"https://mathstodon.xyz/tags/Narcolepsy\" class=\"mention hashtag\" rel=\"tag\">#<span>Narcolepsy</span></a></p>", "contentMap": { "en": "<p>Taking my first dose of Lumryz tonight!!! Hell of a road to get here, but it’s finally time. Wish me luck :) <a href=\"https://mathstodon.xyz/tags/Narcolepsy\" class=\"mention hashtag\" rel=\"tag\">#<span>Narcolepsy</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/narcolepsy", "name": "#narcolepsy" } ], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113236221954013933/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113236221954013933/replies?min_id=113239896117948246&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113236221954013933/replies", "items": [ "https://mathstodon.xyz/users/seano/statuses/113239896117948246" ] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113236221954013933/likes", "type": "Collection", "totalItems": 5 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113236221954013933/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113221239267199410/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-09-29T14:10:07Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113221239267199410", "type": "Note", "summary": null, "inReplyTo": "https://mathstodon.xyz/users/seano/statuses/112836571766816967", "published": "2024-09-29T14:10:07Z", "url": "https://mathstodon.xyz/@seano/113221239267199410", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113221239267199410", "inReplyToAtomUri": "https://mathstodon.xyz/users/seano/statuses/112836571766816967", "conversation": "tag:mathstodon.xyz,2024-07-23:objectId=106872214:objectType=Conversation", "content": "<p>Eta-expansion is just proof-relevant identity-elimination.</p>", "contentMap": { "en": "<p>Eta-expansion is just proof-relevant identity-elimination.</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113221239267199410/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113221239267199410/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113221239267199410/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113221239267199410/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113221239267199410/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113216802038909228/activity", "type": "Announce", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-09-28T19:21:40Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/Danpiker", "https://mathstodon.xyz/users/seano/followers" ], "object": "https://mathstodon.xyz/users/Danpiker/statuses/113209093742279188" }, { "id": "https://mathstodon.xyz/users/seano/statuses/113201799638077832/activity", "type": "Announce", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-09-26T03:46:22Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://hci.social/users/chrisamaphone", "https://mathstodon.xyz/users/seano/followers" ], "object": "https://hci.social/users/chrisamaphone/statuses/113200742443665949" }, { "id": "https://mathstodon.xyz/users/seano/statuses/113188509964239862/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-09-23T19:26:37Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers", "https://mathstodon.xyz/users/isAdisplayName" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113188509964239862", "type": "Note", "summary": null, "inReplyTo": "https://mathstodon.xyz/users/isAdisplayName/statuses/113188456849545861", "published": "2024-09-23T19:26:37Z", "url": "https://mathstodon.xyz/@seano/113188509964239862", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers", "https://mathstodon.xyz/users/isAdisplayName" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113188509964239862", "inReplyToAtomUri": "https://mathstodon.xyz/users/isAdisplayName/statuses/113188456849545861", "conversation": "tag:mathstodon.xyz,2024-09-23:objectId=115731128:objectType=Conversation", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@isAdisplayName\" class=\"u-url mention\">@<span>isAdisplayName</span></a></span> Yeah exactly!! I feel like even the way I think about logic and mathematics as a whole changed as I started working in type theory more and more, and I feel like it&#39;s easier for me to &quot;get&quot; the structure of a proof now.</p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@isAdisplayName\" class=\"u-url mention\">@<span>isAdisplayName</span></a></span> Yeah exactly!! I feel like even the way I think about logic and mathematics as a whole changed as I started working in type theory more and more, and I feel like it&#39;s easier for me to &quot;get&quot; the structure of a proof now.</p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://mathstodon.xyz/users/isAdisplayName", "name": "@isAdisplayName" } ], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113188509964239862/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113188509964239862/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113188509964239862/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113188509964239862/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113188509964239862/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113188391572242091/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-09-23T18:56:31Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113188391572242091", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-09-23T18:56:31Z", "url": "https://mathstodon.xyz/@seano/113188391572242091", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113188391572242091", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2024-09-23:objectId=115731128:objectType=Conversation", "content": "<p>Had an interesting discussion today about the importance and role of terms when teaching students about proofs! Specifically in the context of proof assistants, that is.</p><p>This came about because for one of my projects I&#39;m currently designing a proof assistant that&#39;s intended to help teach students proofs. And it was brought up that I need to consider if exposing students to terms at all in the proof assistant actually helps work towards the stated pedagogical goal.</p><p>Personally, I feel like I&#39;ve benefited a lot from working in proof assistants like Agda that expose terms directly to the user, and that I have a much better mental model of how these tools work compared to more tactic-heavy proof assistants like Lean. And relatedly, I also feel like thinking about proofs and propositions through the lens of terms and types has benefited me even outside of working in proof assistants.</p><p>But there definitely is an argument to be have here, and it&#39;s one I haven&#39;t really been considering much until now. I kind of only recently figured that incorporating terms in a proof assistant would help students acclimate to existing proof assistants if they later started using them, so I was going to do so because of that, but I don&#39;t think that alone is a good enough reason now.</p>", "contentMap": { "en": "<p>Had an interesting discussion today about the importance and role of terms when teaching students about proofs! Specifically in the context of proof assistants, that is.</p><p>This came about because for one of my projects I&#39;m currently designing a proof assistant that&#39;s intended to help teach students proofs. And it was brought up that I need to consider if exposing students to terms at all in the proof assistant actually helps work towards the stated pedagogical goal.</p><p>Personally, I feel like I&#39;ve benefited a lot from working in proof assistants like Agda that expose terms directly to the user, and that I have a much better mental model of how these tools work compared to more tactic-heavy proof assistants like Lean. And relatedly, I also feel like thinking about proofs and propositions through the lens of terms and types has benefited me even outside of working in proof assistants.</p><p>But there definitely is an argument to be have here, and it&#39;s one I haven&#39;t really been considering much until now. I kind of only recently figured that incorporating terms in a proof assistant would help students acclimate to existing proof assistants if they later started using them, so I was going to do so because of that, but I don&#39;t think that alone is a good enough reason now.</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113188391572242091/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113188391572242091/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113188391572242091/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113188391572242091/likes", "type": "Collection", "totalItems": 4 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113188391572242091/shares", "type": "Collection", "totalItems": 0 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113166215160167980/activity", "type": "Announce", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-09-19T20:56:46Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/VinceVatter", "https://mathstodon.xyz/users/seano/followers" ], "object": "https://mathstodon.xyz/users/VinceVatter/statuses/113165532408597589" }, { "id": "https://mathstodon.xyz/users/seano/statuses/113159336955664900/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-09-18T15:47:33Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113159336955664900", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-09-18T15:47:33Z", "url": "https://mathstodon.xyz/@seano/113159336955664900", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113159336955664900", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2024-09-18:objectId=114996346:objectType=Conversation", "content": "<p>Maybe we should stop writing terms and using them to construct derivation trees, and start constructing derivation trees and using them to read off terms.</p>", "contentMap": { "en": "<p>Maybe we should stop writing terms and using them to construct derivation trees, and start constructing derivation trees and using them to read off terms.</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113159336955664900/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113159336955664900/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113159336955664900/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113159336955664900/likes", "type": "Collection", "totalItems": 4 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113159336955664900/shares", "type": "Collection", "totalItems": 1 } } }, { "id": "https://mathstodon.xyz/users/seano/statuses/113154908361336550/activity", "type": "Announce", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-09-17T21:01:18Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/julesh", "https://mathstodon.xyz/users/seano/followers" ], "object": "https://mathstodon.xyz/users/julesh/statuses/113154497189517487" }, { "id": "https://mathstodon.xyz/users/seano/statuses/113154100280370651/activity", "type": "Create", "actor": "https://mathstodon.xyz/users/seano", "published": "2024-09-17T17:35:47Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers", "https://types.pl/users/amy" ], "object": { "id": "https://mathstodon.xyz/users/seano/statuses/113154100280370651", "type": "Note", "summary": null, "inReplyTo": "https://types.pl/users/amy/statuses/113153940364178614", "published": "2024-09-17T17:35:47Z", "url": "https://mathstodon.xyz/@seano/113154100280370651", "attributedTo": "https://mathstodon.xyz/users/seano", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/seano/followers", "https://types.pl/users/amy" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/seano/statuses/113154100280370651", "inReplyToAtomUri": "https://types.pl/users/amy/statuses/113153940364178614", "conversation": "tag:types.pl,2024-09-17:objectId=25526185:objectType=Conversation", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://types.pl/@amy\" class=\"u-url mention\">@<span>amy</span></a></span> Oof I still remember getting mine taken out :( hope the pain gets better soon and that you have a speedy recovery!</p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://types.pl/@amy\" class=\"u-url mention\">@<span>amy</span></a></span> Oof I still remember getting mine taken out :( hope the pain gets better soon and that you have a speedy recovery!</p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://types.pl/users/amy", "name": "@amy@types.pl" } ], "replies": { "id": "https://mathstodon.xyz/users/seano/statuses/113154100280370651/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/seano/statuses/113154100280370651/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/seano/statuses/113154100280370651/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/seano/statuses/113154100280370651/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mathstodon.xyz/users/seano/statuses/113154100280370651/shares", "type": "Collection", "totalItems": 0 } } } ] }