#formal
Live, measured metrics for the hashtag #formal from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #formal
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 · fosstodon.org (Mastodon public tags API) · fetched 2026-09-18 09:34 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · fosstodon.org (Mastodon public search API) · fetched 2026-09-18 09:34 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-18 09:34 UTCEverything below is measured over the latest 40 public posts (spanning ~7818 hours).
Posting hours (UTC) — busiest: 11:00
Languages: English (34) · German (1) · French (1)
Avg boosts / post: 0.7
Top of the latest posts
The software practice was once a mathematical activity, à la Hoare, Dijkstra, Bird, et al. But it has not been so, for several decades. If the present #software practice is to mature into a bona fide #engineering practice in the future, #ma
When I first got to know the #Z notation #formal method in the early 1980s, I was very impressed. In those days, imperative languages like C and Pascal ruled the industrial landscape, and pen-and-paper #programming was still an accepted, na
“Introduction to #Formal #Reasoning”, by Prof Altenkirch (Nottingham), is the most accessible text I have read on #logic for #CS undergraduates. The book uses #Lean theorem prover, to boot! There are tonnes of great “intro” books and articl
What “formal” means
Wiktionaryformal/ˈfɔːməl/
- nounFormalin.
- adjectiveBeing in accord with established forms.
#formal across platforms
every network with a public tag surfaceFollow #formal 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/formal