| <p align=center><a href="https://leanprover.github.io"><img src="https://leanprover.github.io/images/lean_logo.svg" alt="logo" width="300px"/></a></p> | |
| <table> | |
| <tr> | |
| <th>License</th><th>Windows</th><th>Linux / macOS</th><th>Test Coverage</th><th>Chat</th> | |
| </tr> | |
| <tr> | |
| <td><a href="LICENSE"><img src="https://img.shields.io/badge/license-APACHE_2-green.svg?dummy" title="License"/></a></td> | |
| <td><a href="https://ci.appveyor.com/project/leodemoura/lean/branch/lean4"><img src="https://ci.appveyor.com/api/projects/status/lush6vyy1m0qg6vc/branch/lean4"/></a></td> | |
| <td><a href="https://travis-ci.org/leanprover/lean/branches"><img src="https://travis-ci.org/leanprover/lean.png?branch=lean4"/></a></td> | |
| <td><a href="https://codecov.io/gh/leanprover/lean/branch/lean4"><img src="https://codecov.io/gh/leanprover/lean/branch/lean4/graph/badge.svg" alt="Codecov"/></a></td> | |
| <td><a href="https://leanprover.zulipchat.com"><img src="https://img.shields.io/badge/zulip-join_chat-brightgreen.svg" alt="Join the Zulip chat"/></a></td> | |
| </tr> | |
| </table> | |
| About | |
| ----- | |
| - [Homepage](http://leanprover.github.io) | |
| - [Theorem Proving in Lean](https://leanprover.github.io/theorem_proving_in_lean/index.html) | |
| - [Core library](library/library.md) | |
| - [Change Log](doc/changes.md) | |
| - [FAQ](doc/faq.md) | |
| - For HoTT mode, please use [Lean2](https://github.com/leanprover/lean2). | |
| Installation | |
| ------------ | |
| Stable and nightly binary releases of Lean are available on the [homepage](https://leanprover.github.io/download/). For building Lean from source, see the [build instructions](doc/make/index.md). | |
| Miscellaneous | |
| ------------- | |
| - Building Doxygen Documentation: `doxygen src/Doxyfile` | |
| - [Coding Style](doc/coding_style.md) | |
| - [Library Style Conventions](doc/lean/library_style.org) | |
| - [Git Commit Conventions](doc/commit_convention.md) | |
| - [Automatic Builds](doc/make/travis.md) | |
| - [Syntax Highlight Lean Code in LaTeX](doc/syntax_highlight_in_latex.md) | |
| - [Exporting, and reference type-checkers](doc/export_format.md) | |
| Roadmap | |
| ------------- | |
| - [Open RFC issues](https://github.com/leanprover/lean/issues?q=is%3Aissue+is%3Aopen+label%3ARFC) | |
| - [Features](https://github.com/leanprover/lean/issues?q=is%3Aissue+is%3Aopen+label%3AFeature) | |
| - [Wish list](https://github.com/leanprover/lean/issues?q=is%3Aissue+is%3Aopen+label%3AI-wishlist) | |
| - [High priority issues](https://github.com/leanprover/lean/issues?q=is%3Aissue+is%3Aopen+label%3AP-high) | |
| - [Medium priority issues](https://github.com/leanprover/lean/issues?q=is%3Aissue+is%3Aopen+label%3AP-medium) |