Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
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Sebastian Ullrich f08983bf01
chore: support jj workspaces in cmake git hash detection (#13190)
The stage0 tree hash used by Lake to invalidate stage 1 oleans was
computed via `git ls-tree HEAD`, which fails in jj workspaces (no .git
directory). Fall back to discovering the backing git repo via `jj git
root` and resolving the current workspace's commit via `jj log -r @`
(since git's HEAD points to the root jj workspace, not the current one).
2026-03-30 16:32:07 +00:00
.claude chore: CLAUDE.md individual module build instructions (#13189) 2026-03-30 14:30:16 +00:00
.github fix: rebootstrap cache in github CI (#13143) 2026-03-26 20:50:03 +00:00
.vscode
doc feat: unfold and rewrap instances in inferInstanceAs and deriving 2026-03-22 13:25:46 +01:00
images
releases_drafts
script chore: remove lean4checker from release repos (#13121) 2026-03-26 12:15:37 +00:00
src chore: support jj workspaces in cmake git hash detection (#13190) 2026-03-30 16:32:07 +00:00
stage0 chore: support jj workspaces in cmake git hash detection (#13190) 2026-03-30 16:32:07 +00:00
tests feat: add deprecated_arg attribute (#13011) 2026-03-30 10:20:44 +00:00
.gitattributes
.gitignore
.gitpod.Dockerfile
.gitpod.yml
.ignore
CMakeLists.txt chore: make leantar available in stage0 (#12992) 2026-03-19 20:43:43 +00:00
CMakePresets.json
CODEOWNERS
CONTRIBUTING.md chore: migrate pkg tests (#12889) 2026-03-11 18:55:46 +00:00
flake.lock
flake.nix chore: add aarch64-darwin to flake (#12915) 2026-03-18 15:55:34 +00:00
lean-toolchain
LICENSE
LICENSES
README.md
RELEASES.md chore: updates to release_checklist.md (#7817) 2025-04-04 03:45:36 +00:00

This is the repository for Lean 4.

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Building from Source

See Building Lean.