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    • Mathlib4 review and triage dashboard
      Python
      Apache License 2.0
      98273Updated Jun 23, 2025Jun 23, 2025
    • mathlib4

      Public
      The math library of Lean 4
      Lean
      Apache License 2.0
      5522.1k2681.6kUpdated Jun 23, 2025Jun 23, 2025
    • Hosts the website for mathlib and other Lean community infrastructure.
      CSS
      MIT License
      14862188Updated Jun 23, 2025Jun 23, 2025
    • Display gitstats output on the mathlib website
      Python
      6200Updated Jun 23, 2025Jun 23, 2025
    • batteries

      Public
      The "batteries included" extended library for the Lean programming language and theorem prover
      Lean
      Apache License 2.0
      1203112258Updated Jun 23, 2025Jun 23, 2025
    • nightly-testing and lean-pr-testing branches of Mathlib
      Lean
      Apache License 2.0
      552000Updated Jun 23, 2025Jun 23, 2025
    • iris-lean

      Public
      Lean 4 port of Iris, a higher-order concurrent separation logic framework
      Lean
      Apache License 2.0
      121022015Updated Jun 22, 2025Jun 22, 2025
    • lean4web

      Public
      The Lean 4 web editor
      TypeScript
      Apache License 2.0
      349373Updated Jun 21, 2025Jun 21, 2025
    • quote4

      Public
      Intuitive, type-safe expression quotations for Lean 4.
      Lean
      Apache License 2.0
      1486146Updated Jun 20, 2025Jun 20, 2025
    • aesop

      Public
      White-box automation for Lean 4
      Lean
      Apache License 2.0
      33275362Updated Jun 20, 2025Jun 20, 2025
    • Action to generate Lean documentation pages
      JavaScript
      0000Updated Jun 20, 2025Jun 20, 2025
    • Mathlib style linter
      0100Updated Jun 20, 2025Jun 20, 2025
    • lean4game

      Public
      Server to host lean games.
      TypeScript
      GNU General Public License v3.0
      47277937Updated Jun 20, 2025Jun 20, 2025
    • scripts and cron jobs for Azure
      Python
      5100Updated Jun 19, 2025Jun 19, 2025
    • Fermat's Last Theorem for regular primes
      Lean
      Apache License 2.0
      36100Updated Jun 19, 2025Jun 19, 2025
    • blog

      Public
      Source for the community blog
      Python
      24749Updated Jun 19, 2025Jun 19, 2025
    • lean-auto

      Public
      Experiments in automation for Lean
      Lean
      Apache License 2.0
      1911482Updated Jun 19, 2025Jun 19, 2025
    • con-nf

      Public
      A formal consistency proof of Quine's set theory New Foundations
      Lean
      Apache License 2.0
      87210Updated Jun 18, 2025Jun 18, 2025
    • Action that creates a Git tag when updating to a new Lean release.
      Shell
      0010Updated Jun 18, 2025Jun 18, 2025
    • Action for automatically updating to Mathlib releases
      JavaScript
      MIT License
      0100Updated Jun 18, 2025Jun 18, 2025
    • duper

      Public
      Lean
      Apache License 2.0
      128101Updated Jun 12, 2025Jun 12, 2025
    • Formalization of the existence of sphere eversions
      Lean
      Apache License 2.0
      154300Updated Jun 10, 2025Jun 10, 2025
    • Emacs major mode for Lean 4
      Emacs Lisp
      Apache License 2.0
      3295223Updated Jun 8, 2025Jun 8, 2025
    • Tool to analyse the import structure of lean projects.
      Lean
      Apache License 2.0
      121421Updated Jun 5, 2025Jun 5, 2025
    • repl

      Public
      A simple REPL for Lean 4, returning information about errors and sorries.
      Lean
      541322013Updated Jun 4, 2025Jun 4, 2025
    • Helper toolkit for creating your own Lean 4 UserWidgets
      Lean
      Apache License 2.0
      39144130Updated Jun 4, 2025Jun 4, 2025
    • plausible

      Public
      Lean
      Apache License 2.0
      84612Updated Jun 4, 2025Jun 4, 2025
    • Lean 4 tutorial files
      Lean
      Apache License 2.0
      83801Updated Jun 3, 2025Jun 3, 2025
    • The user home repository for the Mathematics in Lean tutorial.
      HTML
      25937200Updated Jun 3, 2025Jun 3, 2025
    • Syntax for searching with natural language from Lean, using https://leansearch.net/ (may extend to other services)
      Lean
      Apache License 2.0
      62330Updated May 26, 2025May 26, 2025