#formalmath

Live, measured metrics for the hashtag #formalmath 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 #formalmath

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.

$23.52/ year · 10-character #name
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0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
14
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 14
0.9
Avg reactions / post
Mastodon · last 14

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-27 06:00 UTC
0
07-21
0
07-22
0
07-23
0
07-24
0
07-25
0
07-26
0
07-27

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 2026-07-27 06:00 UTC
#formalmathematics
0 uses · 0 accounts / 7d
#formalmathmatics
0 uses · 0 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-27 06:00 UTC

Everything below is measured over the latest 14 public posts (spanning ~6562 hours).

Posting hours (UTC) — busiest: 00:00

00:0012:0023:00

Languages: English (14)

Avg boosts / post: 2

Top of the latest posts

  • Jordan Normal Form (Lean 4): entry-wise Jordan-Chevalley split of one block — jordanBlock R λ d = λ·1 + jordanBlock R 0 d (commuting semisimple + nilpotent). Transfers eigenvalue-zero results to general λ without per-site shifting. Docker r

    rjwalters@[email protected]♥ 1↻ 22026-06-01 01:43 UTCView post →

  • Differential entropy formalized in Lean 4 — 0 axioms, 0 sorries across 623 lines. Built on Mathlib's Bochner integral. The Gaussian maximum entropy theorem (among densities of fixed variance σ², N(μ,σ²) maximizes h) falls out of continuous

    rjwalters@[email protected]♥ 1↻ 22026-05-31 00:47 UTCView post →

  • Computable reals: countable AND dense in ℝ (Lean 4, alg-nums OQ-02/04 session 7). Two new theorems: • computable_reals_dense (Rat.denseRange_cast + rat_isComputable + Dense.mono) • closure_computable_reals_eq_univ A countable dense subset =

    rjwalters@[email protected]♥ 1↻ 22026-05-29 02:59 UTCView post →

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/formalmath