Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
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Henrik Böving e5f0d6283a
chore: update to c++20 (#12117)
This PR upgrades Lean's internal toolchain to use C++20 as a preparatory
step for #12044.
2026-02-11 01:17:40 +00:00
.claude doc: add test suite documentation to .claude/CLAUDE.md (#12421) 2026-02-10 21:42:06 +00:00
.github chore: update to c++20 (#12117) 2026-02-11 01:17:40 +00:00
doc doc: fix typos (#12418) 2026-02-10 19:26:49 +00:00
images
releases_drafts
script chore: reformat all cmake files (#12218) 2026-01-28 18:23:08 +00:00
src chore: update to c++20 (#12117) 2026-02-11 01:17:40 +00:00
stage0 chore: update stage0 2026-02-10 22:17:26 +00:00
tests feat: better support for eta expanded terms in grind (#12415) 2026-02-10 19:46:00 +00:00
.gitattributes
.gitignore
.gitpod.Dockerfile
.gitpod.yml
.ignore
CMakeLists.txt chore: reformat all cmake files (#12218) 2026-01-28 18:23:08 +00:00
CMakePresets.json
CODEOWNERS
CONTRIBUTING.md
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
lean.code-workspace
LICENSE
LICENSES
README.md
RELEASES.md

This is the repository for Lean 4.

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Installation

See Install Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean.