#metamath

Live, measured metrics for the hashtag #metamath from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #metamath

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.

$110.68/ year · 8-character #name
Claim #metamath — $110.68/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
30
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 30
0.1
Avg reactions / post
Mastodon · last 30
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-10-14 04:10 UTC
0
10-08
0
10-09
0
10-10
0
10-11
0
10-12
0
10-13
0
10-14

0 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 2026-10-14 04:10 UTC

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-10-14 04:10 UTC

Everything below is measured over the latest 30 public posts (spanning ~33682 hours).

Posting hours (UTC) — busiest: 11:00

00:0012:0023:00

Languages: English (30)

Avg boosts / post: 0.9

Top of the latest posts

  • RE: https://mathstodon.xyz/@BartoszMilewski/117242043196635051 Learning category theory continues to be a surreal experience. It's always some passing off-handed comment or sentence that unlocks months of banging my head against a textbook,

    E@[email protected]♥ 1↻ 12026-09-09 21:02 UTCView post →
  • Every well-ordered set is isomorphic to an ordinal. Common notion, for example see Introduction to https://arxiv.org/abs/2409.07352 ⊢((𝐴∈V∧𝑅We𝐴)↔∃𝑓(dom𝑓∈On∧𝑓IsomE,𝑅(dom𝑓,𝐴))) \[ \vdash ( ( A \in \mathrm{V} \wedge R \mathrm{We} A )

    Richard Penner@[email protected]♥ 1↻ 02026-02-20 14:22 UTCView post →
  • Keeping busy with Sudoku, Wordle, Crosswords, and mining textbooks for statements to practice proving in #Metamath ... Inspired by this video playlist on #RealAnalysis #Math https://www.youtube.com/playlist?list=PLYPU-RArkLZNwMZ55-y8FZZEeY7

    Richard Penner@[email protected]♥ 1↻ 02026-02-16 11:31 UTCView post →

What “metamath” means

Wikipedia

Metamath is a formal language and an associated computer program for archiving and verifying mathematical proofs. Several databases of proved theorems have been developed using Metamath covering standard results in logic, set theory, number theory, algebra, topology and analysis, among others.

“Metamath” on Wikipedia (CC BY-SA) →

#metamath across platforms

every network with a public tag surface

Follow #metamath 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/metamath