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This is the repository for Lean 4, which is currently being released as milestone releases towards a first stable release. Lean 3 is still the latest stable release.
About
- Quickstart
- Homepage
- Theorem Proving Tutorial
- Manual
- Release notes starting at v4.0.0-m3
- FAQ
Installation
See Setting Up Lean.
Contributing
Please read our Contribution Guidelines first.
Building from Source
See Building Lean.
Languages
Lean
94.3%
C++
4.1%
Python
0.6%
Shell
0.4%
CMake
0.3%