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- Important: This is Lean 3.16.4c, a fork of Lean 3 maintained and updated by the Lean community. The last official release of Lean 3.x was Lean 3.4.2, which can be found here. The Lean developers are currently developing Lean 4.
- Lean Homepage
- Lean Prover Community Homepage
- Theorem Proving in Lean
- Change Log
- Lean 3.4.2 FAQ
- For HoTT mode, please use Lean2.
The recommended way to install Lean is following these instructions.
Stable binary releases of Lean are available on the release page. Nightly binary releases are available on the nightly release page. For building Lean from source, see the build instructions.
- Building Doxygen Documentation:
doxygen src/Doxyfile - Coding Style
- Library Style Conventions
- Git Commit Conventions
- Syntax Highlight Lean Code in LaTeX
- Exporting, and reference type-checkers