#semigroup
Live, measured metrics for the hashtag #semigroup from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #semigroup
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 · mastodon.social (Mastodon public tags API) · fetched 2026-10-09 04:07 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.social (Mastodon public search API) · fetched 2026-10-09 04:07 UTCLive pulse
measured · mastodon.social (Mastodon tag timeline) · fetched 2026-10-09 04:07 UTCEverything below is measured over the latest 7 public posts (spanning ~21359 hours).
Posting hours (UTC)
Languages: English (4) · French (2) · German (1)
Avg boosts / post: 0.6
Top of the latest posts
🚀 just uploaded to https://fpilluminated.com Folding Cheat Sheet #8 - Folding with Monoids. 39 slides - Twelve examples. Direct link: https://fpilluminated.com/deck/240 #haskell #scala #monoid #semigroup #fold #foldMap #combineAll #cats #f
Here's a weirdo semigroup: 0 1 2 3 4 5 0| 5 5 5 2 0 3 1| 5 5 5 2 2 3 2| 5 5 5 2 2 3 3| 2 2 2 3 3 5 4| 2 1 2 3 4 5 5| 3 3 3 5 5 2 Besides associativity, it has the properties that: * There is no left-identity or right-identity * Neither a*_
The more I learn about quasigroups, the more I think they deserve the name in a way that semigroups don't. Semigroups that faithfully embed into a group maybe are ok b/c they're "half the group" (e.g. positive reals inside the reals, under
What “semigroup” means
WikipediaIn mathematics, a semigroup is an algebraic structure consisting of a set together with an associative internal binary operation on it. In mathematical analysis, the term also appears in the theory of one-parameter operator semigroups: see C0-semigroup.
“Semigroup” on Wikipedia (CC BY-SA) →#semigroup across platforms
every network with a public tag surfaceFollow #semigroup 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/semigroup