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    72 repositories

    • mathlib4

      Public
      The math library of Lean 4
      lean4
      Lean
      •
      Apache License 2.0
      •396•1.9k•244•1.4k•Updated Apr 11, 2025Apr 11, 2025

    • batteries

      Public
      The "batteries included" extended library for the Lean programming language and theorem prover
      leanlean4
      Lean
      •
      Apache License 2.0
      •118•291•24•58•Updated Apr 11, 2025Apr 11, 2025

    • queueboard

      Public
      Mathlib4 review and triage dashboard
      Python
      •
      Apache License 2.0
      •7•7•28•2•Updated Apr 11, 2025Apr 11, 2025

    • lean4web

      Public
      The Lean 4 web editor
      lean4
      TypeScript
      •
      Apache License 2.0
      •32•87•7•1•Updated Apr 11, 2025Apr 11, 2025

    • leanprover-community.github.io

      Public
      Hosts the website for mathlib and other Lean community infrastructure.
      CSS
      •
      MIT License
      •139•61•16•10•Updated Apr 11, 2025Apr 11, 2025

    • mathlib_stats

      Public
      Display gitstats output on the mathlib website
      Python
      •6•2•0•0•Updated Apr 11, 2025Apr 11, 2025

    • repl

      Public
      A simple REPL for Lean 4, returning information about errors and sorries.
      Lean
      •46•109•15•4•Updated Apr 10, 2025Apr 10, 2025

    • con-nf

      Public
      A formal consistency proof of Quine's set theory New Foundations
      set-theorylean4new-foundations
      Lean
      •
      Apache License 2.0
      •7•68•1•0•Updated Apr 10, 2025Apr 10, 2025

    • aesop

      Public
      White-box automation for Lean 4
      lean4
      Lean
      •
      Apache License 2.0
      •31•257•33•3•Updated Apr 10, 2025Apr 10, 2025

    • flt-regular

      Public
      Fermat's Last Theorem for regular primes
      Lean
      •
      Apache License 2.0
      •3•55•0•0•Updated Apr 10, 2025Apr 10, 2025

    • import-graph

      Public
      Tool to analyse the import structure of lean projects.
      lean4
      Lean
      •
      Apache License 2.0
      •9•10•2•0•Updated Apr 10, 2025Apr 10, 2025

    • lean-auto

      Public
      Experiments in automation for Lean
      Lean
      •
      Apache License 2.0
      •17•101•8•1•Updated Apr 10, 2025Apr 10, 2025

    • ProofWidgets4

      Public
      Helper toolkit for creating your own Lean 4 UserWidgets
      leanlean4visualization
      Lean
      •
      Apache License 2.0
      •34•129•14•0•Updated Apr 8, 2025Apr 8, 2025

    • mathlib-manual

      Public
      JavaScript
      •
      Apache License 2.0
      •18•0•0•1•Updated Apr 8, 2025Apr 8, 2025

    • iris-lean

      Public
      Lean 4 port of Iris, a higher-order concurrent separation logic framework
      Lean
      •
      Apache License 2.0
      •10•92•4•6•Updated Apr 5, 2025Apr 5, 2025

    • sphere-eversion

      Public
      Formalization of the existence of sphere eversions
      Lean
      •
      Apache License 2.0
      •13•40•0•0•Updated Apr 5, 2025Apr 5, 2025

    • duper

      Public
      lean4
      Lean
      •
      Apache License 2.0
      •11•68•0•0•Updated Apr 5, 2025Apr 5, 2025

    • lean4game

      Public
      Server to host lean games.
      reactlean4
      TypeScript
      •
      GNU General Public License v3.0
      •44•252•88•6•Updated Apr 4, 2025Apr 4, 2025

    • lean-update

      Public
      GitHub Action which automatically updates Lean projects
      github-actionslean4
      JavaScript
      •
      MIT License
      •2•2•4•0•Updated Apr 4, 2025Apr 4, 2025

    • plausible

      Public
      Lean
      •
      Apache License 2.0
      •7•40•1•3•Updated Apr 3, 2025Apr 3, 2025

    • quote4

      Public
      Intuitive, type-safe expression quotations for Lean 4.
      lean4
      Lean
      •
      Apache License 2.0
      •14•83•13•6•Updated Apr 3, 2025Apr 3, 2025

    • mathematics_in_lean

      Public
      The user home repository for the Mathematics in Lean tutorial.
      HTML
      •224•324•0•0•Updated Mar 30, 2025Mar 30, 2025

    • LeanSearchClient

      Public
      Syntax for searching with natural language from Lean, using https://leansearch.net/ (may extend to other services)
      Lean
      •
      Apache License 2.0
      •5•20•2•0•Updated Mar 19, 2025Mar 19, 2025

    • NNG4

      Public
      Natural Number Game
      lean4
      Lean
      •
      Apache License 2.0
      •41•154•20•3•Updated Mar 14, 2025Mar 14, 2025

    • blog

      Public
      Source for the community blog
      Python
      •22•7•4•9•Updated Mar 2, 2025Mar 2, 2025

    • lean4-metaprogramming-book

      Public
      lean4
      Lean
      •
      Apache License 2.0
      •63•240•18•10•Updated Feb 28, 2025Feb 28, 2025

    • logic_and_proof

      Public
      TeX
      •
      Apache License 2.0
      •2•9•0•0•Updated Feb 17, 2025Feb 17, 2025

    • mathlib4_docs

      Public
      lean4
      3•8•0•0•Updated Feb 16, 2025Feb 16, 2025

    • azure-scripts

      Public
      scripts and cron jobs for Azure
      Python
      •5•1•0•0•Updated Feb 14, 2025Feb 14, 2025

    • lean4-mode

      Public
      Emacs major mode for Lean 4
      emacslean4
      Emacs Lisp
      •
      Apache License 2.0
      •32•86•20•4•Updated Jan 17, 2025Jan 17, 2025