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AxiomMath/CFSG

Science & researchLean
Total stars
119
Today
+4since 12:52 UTC
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A Lean formalization of the Classification of Finite Simple Groups

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About the project

A sorry-free Lean 4 formalization of the Classification of Finite Simple Groups (CFSG), built on Mathlib and TauCeti using standard axioms. Aimed at mathematicians and formal proof developers.

Useful for
  • Verify the formal CFSG proof by running lake build
  • Study the Lean 4 formalization of the classification of finite simple groups
  • Reuse the CFSG statement from TauCeti in your own Lean projects

README summarized by DeepSeek V4.1 Flash. Details may be inaccurate. Read the original README →

5.7 Early signal Magnitude out of 10 — how fast interest is growing, not a quality score.

Star growth looks organic. Data as of October 28, 2026, 15:24 UTC.

The star-growth assessment does not verify whether the project is safe to run.

Stars per day

050100October 27, 2026October 28, 2026

Bars show stars per UTC day; the line is a moving average of available history. Gaps mean missing data, not zero growth. Today's bar is incomplete. Red marks spike days.

Why it’s trending

  • Star-counter measurements on 2026-10-28 (UTC), 12:52–15:08: 115 → 119 stars (+4). This is the change over that interval.
  • Estimated end-of-day forecast: about +18 stars, using observed gains and the previous day.
  • The repository is 1 day old and already has 119 stars. With less than two weeks of history, there's no usual pace to compare the spike against yet.
  • Top new repositories this week: #197.
  • Hacker News: “Classification of Finite Simple Groups Formalized in Lean” — 230 points, 22 h ago.
  • About 15 forks a day — people are taking the code.

Measured growth: the last 7 completed days

The full 7-day window is unavailable; no weekly total or comparison is calculated.

Daily measurements · UTC
October 21, 2026
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October 22, 2026
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October 23, 2026
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October 24, 2026
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October 25, 2026
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October 26, 2026
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October 27, 2026
97

Largest measured day in the last 30 days: 97 · October 27, 2026. Days with data: 1.

Completed days come from GitHub star history; today and forecasts are excluded from this comparison. History checked: October 28, 2026, 15:23 UTC. Sources and measurement limits →

Three GitHub discoveries in each edition

What they do, why they are gaining interest, and what to check before using them.

Editions at 10:00, 16:00, 22:00 MSK.

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Numbers

Total stars
119
Today
+4 stars measured 2026-10-28, 12:52–15:08 UTC, ≈ 18 by evening
Forks
15
Issues and pull requests
0
Watchers
2
Language
Lean
License
Apache-2.0
Created
October 27, 2026
Last push
October 27, 2026

Star trust

Growth looks organic: forks and discussion are in line with active projects, and stars arrive unevenly, the way people give them.

These are heuristics, not a verdict: we judge by the repository’s behavior, not by a list of stargazers.

Hacker News discussions
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