#ordinalnumbers
Live, measured metrics for the hashtag #ordinalnumbers from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
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Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-28 20:04 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 2026-07-28 20:04 UTCNo related tags with measured usage found for #ordinalnumbers.
Live pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-28 20:04 UTCEverything below is measured over the latest 2 public posts (spanning ~1385 hours).
Posting hours (UTC)
Languages: English (2)
Avg boosts / post: 0.5
Top of the latest posts
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 )
Take a set, 𝑥. Is it finite or infinite? Well what definition do you use? ① ∃𝑦 ∈ ω₀ 𝑥 ≈ 𝑦 ; There is a natural number, 𝑦, such that you may may map 𝑦 one-to-one onto the set 𝑥, enumerating each of its members. So 𝑥 is finite for the
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/ordinalnumbers