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Lean

Lean Prover

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  1. lean4 lean4 Public

    Lean 4 programming language and theorem prover

    Lean 9.7k 1.1k

Repositories

Showing 10 of 222 repositories
  • lean-beam Public

    Claude/Codex skill and local workflow layer for efficient interaction with Lean 4 and Monte-Carlo Tree Search.

    leanprover/lean-beam's past year of commit activity
    Lean 42 Apache-2.0 5 10 20 Updated Oct 24, 2026
  • downstream-lean4 Public

    A collection of packages downstream of Lean 4.

    leanprover/downstream-lean4's past year of commit activity
    Lean 6 5 0 42 Updated Oct 24, 2026
  • lean4 Public

    Lean 4 programming language and theorem prover

    leanprover/lean4's past year of commit activity
    Lean 9,651 Apache-2.0 1,060 1,104 (6 issues need help) 731 Updated Oct 24, 2026
  • lean4-nightly Public

    Nightly builds

    leanprover/lean4-nightly's past year of commit activity
    23 3 0 0 Updated Oct 24, 2026
  • lean4-pr-releases Public

    Automated releases from leanprover/lean4 PRs

    leanprover/lean4-pr-releases's past year of commit activity
    3 3 0 0 Updated Oct 24, 2026
  • cslib Public

    The Lean Computer Science Library (CSLib)

    leanprover/cslib's past year of commit activity
    Lean 776 Apache-2.0 216 50 158 Updated Oct 24, 2026
  • lean-kernel-arena Public
    leanprover/lean-kernel-arena's past year of commit activity
    Lean 51 Apache-2.0 38 0 1 Updated Oct 24, 2026
  • con-leche Public

    An external lean checker with a proof of consistency

    leanprover/con-leche's past year of commit activity
    Lean 140 Apache-2.0 10 1 0 Updated Oct 24, 2026
  • vscode-lean4 Public

    VS Code extension for the Lean 4 programming language and theorem prover

    leanprover/vscode-lean4's past year of commit activity
    TypeScript 315 Apache-2.0 104 51 14 Updated Oct 24, 2026
  • comparator-live Public

    An online live.lean-lang.org-style playground for running the Comparator tool

    leanprover/comparator-live's past year of commit activity
    TypeScript 3 Apache-2.0 0 0 0 Updated Oct 23, 2026
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