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Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
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Henrik Böving 51ef1dcc5e
fix: overeager uint constant folding (#11042) 
This PR fixes a case of overeager constant folding on UInts where the
compiler would mistakenly
assume `0 - x = x`.
2025-11-01 02:42:43 +00:00
.claude/commands chore: updates to release automation (#10888) 2025-10-22 03:17:28 +00:00
.github chore: adjust pr-title check to enforce capitalization (#11033) 2025-10-31 07:23:25 +00:00
doc feat: zero cost BaseIO (#10625) 2025-10-22 10:55:12 +02:00
images
releases_drafts chore: updates to release_checklist.md (#7817) 2025-04-04 03:45:36 +00:00
script chore: further shake improvements (#10947) 2025-10-26 11:27:19 +00:00
src fix: overeager uint constant folding (#11042) 2025-11-01 02:42:43 +00:00
stage0 chore: update stage0 2025-10-30 18:43:59 +11:00
tests fix: overeager uint constant folding (#11042) 2025-11-01 02:42:43 +00:00
.gitattributes fix: mark doc parser tests as eol=lf (#10344) 2025-09-11 11:19:01 +00:00
.gitignore chore: add .vscode/settings.json to .gitignore (#10795) 2025-10-16 07:08:41 +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
CMakeLists.txt chore: make USE_LAKE the default (#10016) 2025-08-21 11:43:25 +00:00
CMakePresets.json chore: fix reldebug preset (#8051) 2025-04-23 10:05:11 +00:00
CODEOWNERS chore: make @hargoniX code owner of the compiler (#10732) 2025-10-10 04:43:38 +00:00
CONTRIBUTING.md
flake.lock chore: robustify Nix shell (#8141) 2025-04-28 15:08:32 +00:00
flake.nix chore: use lld if available for building core (#10694) 2025-10-08 16:47:30 +00:00
lean-toolchain
lean.code-workspace chore: lean.code-workspace: fix terminal cwd (#10802) 2025-10-16 20:19:12 +00:00
LICENSE
LICENSES
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.