Skip to content

Navigation Menu

Appearance settings

View all features
- BY COMPANY SIZE
  Enterprises
  Small and medium teams
  Startups
  Nonprofits
- BY USE CASE
  App Modernization
  DevSecOps
  DevOps
  CI/CD
  View all use cases
- BY INDUSTRY
  Healthcare
  Financial services
  Manufacturing
  Government
  View all industries
View all solutions
- EXPLORE BY TOPIC
  AI
  Software Development
  DevOps
  Security
  View all topics
- EXPLORE BY TYPE
  Customer stories
  Events & webinars
  Ebooks & reports
  Business insights
  GitHub Skills
- SUPPORT & SERVICES
  Documentation
  Customer support
  Community forum
  Trust center
  Partners
View all resources
- COMMUNITY
  GitHub SponsorsFund open source developers
- PROGRAMS
  Security Lab
  Maintainer Community
  Accelerator
  GitHub Stars
  Archive Program
- REPOSITORIES
  Topics
  Trending
  Collections
- ENTERPRISE SOLUTIONS
  Enterprise platformAI-powered developer platform
- AVAILABLE ADD-ONS
  GitHub Advanced SecurityEnterprise-grade security features
  Copilot for BusinessEnterprise-grade AI features
  Premium SupportEnterprise-grade 24/7 support
Pricing

Appearance settings

You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session.

Dismiss alert

Uh oh!

There was an error while loading. Please reload this page.

Uh oh!

There was an error while loading. Please reload this page.

Lean

Lean Prover

1.3k followers
https://lean-lang.org/
@leanprover@functional.cafe
@leanprover
company/98362384

Overview
Repositories
Projects
Packages
People

More

Overview
Repositories
Projects
Packages
People

Pinned Loading

lean4 lean4 Public

Lean 4 programming language and theorem prover

Lean 8.9k 947

Repositories

Loading

Type

Select type

All Public Sources Forks Archived Mirrors Templates

Language

Select language

All C C++ CSS Emacs Lisp Haskell HTML Java JavaScript Lean Python Ruby Rust Shell TeX TypeScript Vim Script Vue

Sort

Select order

Last updated Name Stars

Showing 10 of 210 repositories

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 Aug 25, 2026
verso Public
Lean documentation authoring tool

leanprover/verso's past year of commit activity

Lean 375 Apache-2.0 120 66 23 Updated Aug 25, 2026
lean-eval-submissions Public
Submission pipeline and results store for the lean-eval benchmark (https://github.com/leanprover/lean-eval)

leanprover/lean-eval-submissions's past year of commit activity

Python 6 Apache-2.0 2 3 0 Updated Aug 25, 2026
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 20 Apache-2.0 3 4 5 Updated Aug 25, 2026
lean4 Public
Lean 4 programming language and theorem prover

leanprover/lean4's past year of commit activity

Lean 8,907 Apache-2.0 947 970 (6 issues need help) 624 Updated Aug 25, 2026
downstream-lean4 Public
A collection of packages downstream of Lean 4.

leanprover/downstream-lean4's past year of commit activity

Lean 2 2 0 6 Updated Aug 25, 2026
lean-workbench Public
Online Lean Workbench

leanprover/lean-workbench's past year of commit activity

TypeScript 7 Apache-2.0 0 22 2 Updated Aug 25, 2026
lean-eval Public
Comparator-based Lean formal mathematics eval

leanprover/lean-eval's past year of commit activity

Lean 40 Apache-2.0 37 6 3 Updated Aug 25, 2026
comparator Public

leanprover/comparator's past year of commit activity

Lean 154 Apache-2.0 27 10 8 Updated Aug 25, 2026
elan Public
The Lean version manager

leanprover/elan's past year of commit activity

Rust 603 Apache-2.0 57 29 1 Updated Aug 25, 2026

View all repositories

People

Top languages

Loading…

Uh oh!

There was an error while loading. Please reload this page.

Most used topics

Loading…

Uh oh!

There was an error while loading. Please reload this page.

Footer

© 2026 GitHub, Inc.

Footer navigation

Terms
Privacy
Security
Status
Community
Docs
Contact

You can’t perform that action at this time.