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Mac Malone 9e0aa14b6f feat: lake: fixedToolchain package configuration (#12935) 
This PR adds the `fixedToolchain` Lake package configuration option.
Setting this to `true` informs Lake that the package is only expected to
function on a single toolchain (like Mathlib). This causes Lake's
toolchain update procedure to prioritize its toolchain and avoids the
need to separate input-to-output mappings for the package by toolchain
version in the Lake cache.
2026-03-17 02:37:55 +00:00
.claude
chore: improve how test suite interacts with stages (#12913)
2026-03-16 15:20:03 +00:00
.github
feat: add lake-ci label to enable full Lake test suite (#12836)
2026-03-10 03:23:35 +00:00
.vscode
chore: replace workspace file with .vscode/ settings (#12770)
2026-03-04 01:10:04 +00:00
doc
chore: improve how test suite interacts with stages (#12913)
2026-03-16 15:20:03 +00:00
images
chore(CMakeLists.txt): move Lean logo to make sure we can test leanemacs without installing Lean
2015-01-31 17:38:49 -08:00
releases_drafts
chore: remove stale release draft notes (#12518)
2026-02-17 19:56:23 +00:00
script
fix: use null-safe while-read loop for subverso manifest sync (#12928)
2026-03-16 08:17:32 +00:00
src
feat: lake: fixedToolchain package configuration (#12935)
2026-03-17 02:37:55 +00:00
stage0
chore: update stage0
2026-03-16 13:15:14 +00:00
tests
feat: lake: fixedToolchain package configuration (#12935)
2026-03-17 02:37:55 +00:00
.gitattributes
chore: migrate more tests to new test suite (#12809)
2026-03-06 16:52:01 +00:00
.gitignore
chore: replace workspace file with .vscode/ settings (#12770)
2026-03-04 01:10:04 +00:00
.gitpod.Dockerfile
chore: add gitpod configuration (#6382)
2024-12-15 21:38:13 +00:00
.gitpod.yml
chore: add gitpod configuration (#6382)
2024-12-15 21:38:13 +00:00
.ignore
chore: ignore stage0/ (for rg etc.)
2022-03-18 15:28:20 +01:00
CMakeLists.txt
feat: bundle leantar with Lean (#12822)
2026-03-09 20:10:59 +00:00
CMakePresets.json
chore: fix ci for new test suite (#12704)
2026-02-27 23:25:37 +00:00
CODEOWNERS
chore: make @hargoniX code owner of the compiler (#10732)
2025-10-10 04:43:38 +00:00
CONTRIBUTING.md
chore: migrate pkg tests (#12889)
2026-03-11 18:55:46 +00:00
flake.lock
chore: update to c++20 (#12117)
2026-02-11 01:17:40 +00:00
flake.nix
chore: update to c++20 (#12117)
2026-02-11 01:17:40 +00:00
lean-toolchain
chore: relative lean-toolchains (#12652)
2026-02-25 10:23:35 +00:00
LICENSE
chore: remove LICENSE header that confused GitHub
2021-11-18 09:42:35 +01:00
LICENSES
feat: bundle leantar with Lean (#12822)
2026-03-09 20:10:59 +00:00
README.md
doc: update URLs that are currently pointing to redirects (#10397)
2025-09-17 15:50:07 +00:00
RELEASES.md
chore: updates to release_checklist.md (#7817)
2025-04-04 03:45:36 +00:00

README.md

This is the repository for Lean 4.

About

Installation

See Install Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean.

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leanlean4
Readme 5 GiB
Languages
Lean 94.3%
C++ 4.1%
Python 0.6%
Shell 0.4%
CMake 0.3%