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    78 repositories

    • queueboard

      Public
      Mathlib4 review and triage dashboard
      AspectJ
      •
      Apache License 2.0
      •9•8•1•2•Updated Sep 18, 2025Sep 18, 2025

    • blog

      Public
      Source for the community blog
      Python
      •26•7•4•7•Updated Sep 18, 2025Sep 18, 2025

    • leanprover-community.github.io

      Public
      Hosts the website for mathlib and other Lean community infrastructure.
      CSS
      •
      MIT License
      •158•64•18•4•Updated Sep 18, 2025Sep 18, 2025

    • mathlib4

      Public
      The math library of Lean 4
      lean4
      Lean
      •
      Apache License 2.0
      •789•2.3k•277•2k•Updated Sep 18, 2025Sep 18, 2025

    • ProofWidgets4

      Public
      Helper toolkit for creating your own Lean 4 UserWidgets
      leanlean4visualization
      Lean
      •
      Apache License 2.0
      •40•155•12•1•Updated Sep 18, 2025Sep 18, 2025

    • mathlib_stats

      Public
      Display gitstats output on the mathlib website
      Python
      •6•2•0•0•Updated Sep 18, 2025Sep 18, 2025

    • lean4game

      Public
      Server to host lean games.
      reactlean4
      TypeScript
      •
      GNU General Public License v3.0
      •57•317•94•5•Updated Sep 18, 2025Sep 18, 2025

    • mathlib4-nightly-testing

      Public
      nightly-testing and lean-pr-testing branches of Mathlib
      Lean
      •
      Apache License 2.0
      •789•0•0•8•Updated Sep 18, 2025Sep 18, 2025

    • duper

      Public
      lean4
      Lean
      •
      Apache License 2.0
      •12•87•1•0•Updated Sep 18, 2025Sep 18, 2025

    • lean-auto

      Public
      Experiments on automation for Lean
      Lean
      •
      Apache License 2.0
      •23•135•9•0•Updated Sep 18, 2025Sep 18, 2025

    • batteries

      Public
      The "batteries included" extended library for the Lean programming language and theorem prover
      leanlean4
      Lean
      •
      Apache License 2.0
      •125•327•24•47•Updated Sep 18, 2025Sep 18, 2025

    • flt-regular

      Public
      Fermat's Last Theorem for regular primes
      Lean
      •
      Apache License 2.0
      •3•61•0•0•Updated Sep 17, 2025Sep 17, 2025

    • plausible

      Public
      Lean
      •
      Apache License 2.0
      •9•61•1•3•Updated Sep 17, 2025Sep 17, 2025

    • mathlib-manual

      Public
      Lean
      •
      Apache License 2.0
      •38•1•0•0•Updated Sep 15, 2025Sep 15, 2025

    • queueboard-core

      Public
      testing a split of code and data for the queueboard
      Python
      •
      Apache License 2.0
      •0•0•25•0•Updated Sep 15, 2025Sep 15, 2025

    • import-graph

      Public
      Tool to analyse the import structure of lean projects.
      lean4
      Lean
      •
      Apache License 2.0
      •12•14•2•0•Updated Sep 15, 2025Sep 15, 2025

    • iris-lean

      Public
      Lean 4 port of Iris, a higher-order concurrent separation logic framework
      Lean
      •
      Apache License 2.0
      •15•119•20•13•Updated Sep 15, 2025Sep 15, 2025

    • sphere-eversion

      Public
      Formalization of the existence of sphere eversions
      Lean
      •
      Apache License 2.0
      •15•43•0•0•Updated Sep 15, 2025Sep 15, 2025

    • repl

      Public
      A simple REPL for Lean 4, returning information about errors and sorries.
      Lean
      •
      Apache License 2.0
      •56•158•25•17•Updated Sep 15, 2025Sep 15, 2025

    • aesop

      Public
      White-box automation for Lean 4
      lean4
      Lean
      •
      Apache License 2.0
      •36•299•37•3•Updated Sep 15, 2025Sep 15, 2025

    • quote4

      Public
      Intuitive, type-safe expression quotations for Lean 4.
      lean4
      Lean
      •
      Apache License 2.0
      •15•96•15•7•Updated Sep 15, 2025Sep 15, 2025

    • lean-update

      Public
      GitHub Action which automatically updates Lean projects
      github-actionslean4
      JavaScript
      •
      MIT License
      •3•5•6•0•Updated Sep 8, 2025Sep 8, 2025

    • lean4web

      Public
      The Lean 4 web editor
      lean4
      TypeScript
      •
      Apache License 2.0
      •38•109•7•3•Updated Sep 7, 2025Sep 7, 2025

    • docgen-action

      Public
      Action to generate Lean documentation pages
      JavaScript
      •1•2•4•0•Updated Sep 3, 2025Sep 3, 2025

    • mathlib4_docs

      Public
      lean4
      5•9•0•0•Updated Sep 2, 2025Sep 2, 2025

    • azure-scripts

      Public
      scripts and cron jobs for Azure
      Python
      •5•1•0•0•Updated Sep 1, 2025Sep 1, 2025

    • NNG4

      Public
      Natural Number Game
      lean4
      Lean
      •
      Apache License 2.0
      •48•216•29•6•Updated Aug 29, 2025Aug 29, 2025

    • mathlib-update-action

      Public
      Action for automatically updating to Mathlib releases
      JavaScript
      •
      MIT License
      •2•3•1•0•Updated Aug 20, 2025Aug 20, 2025

    • lean-release-tag

      Public
      Action that creates a Git tag when updating to a new Lean release.
      Shell
      •0•0•1•0•Updated Aug 19, 2025Aug 19, 2025

    • lint-style-action

      Public
      Mathlib style linter
      0•1•1•0•Updated Aug 18, 2025Aug 18, 2025