#bicategory
Live, measured metrics for the hashtag #bicategory from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #bicategory
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mas.to (Mastodon public tags API) · fetched 2026-09-07 02:22 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mas.to (Mastodon public search API) · fetched 2026-09-07 02:22 UTCNo related tags with measured usage found for #bicategory.
Live pulse
measured · mas.to (Mastodon tag timeline) · fetched 2026-09-07 02:22 UTCEverything below is measured over the latest 1 public posts.
Posting hours (UTC)
Languages: English (1)
Avg boosts / post: 2
Used together with
Top of the latest posts
Some people in #CategoryTheory now use the terms 2-category and 3-category for the weak versions that I was taught to call #bicategory and #tricategory. Part of the motivation for changing terms, I understand, is that the weaker notions are
What “bicategory” means
WikipediaIn category theory in mathematics, a 2-category is a category with "morphisms between morphisms", called 2-morphisms. A basic example is the category Cat of all (small) categories, where a 2-morphism is a natural transformation between functors.
“2-category” on Wikipedia (CC BY-SA) →#bicategory across platforms
every network with a public tag surfaceFollow #bicategory straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/bicategory