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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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Kyle Miller f771dea78b
fix: make sure app elaborator eta feature does not result in capturable variables (#10377) 
This PR fixes an issue where the "eta feature" in the app elaborator,
which is invoked when positional arguments are skipped due to named
arguments, results in variables that can be captured by those named
arguments. Now the temporary local variables that implement this feature
get fresh names. The names used for the closed lambda expression still
use the original parameter names.

Closes #6373
2025-09-14 20:19:50 +00:00
.github chore: CI: ensure cache reuse in update-stage0 (#10359) 2025-09-12 14:56:32 +00:00
doc doc: testing Lean while avoiding rebuilds for downstream projects (#10328) 2025-09-10 13:53:34 +00:00
images
releases_drafts chore: updates to release_checklist.md (#7817) 2025-04-04 03:45:36 +00:00
script chore: review of failing grind tests (#10166) 2025-08-28 05:24:31 +00:00
src fix: make sure app elaborator eta feature does not result in capturable variables (#10377) 2025-09-14 20:19:50 +00:00
stage0 chore: update stage0 2025-09-14 08:05:12 +00:00
tests fix: make sure app elaborator eta feature does not result in capturable variables (#10377) 2025-09-14 20:19:50 +00:00
.gitattributes fix: mark doc parser tests as eol=lf (#10344) 2025-09-11 11:19:01 +00:00
.gitignore feat: further release automation (#9092) 2025-06-30 05:44:10 +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 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 datokrat code owner for iterators, ranges and slices (#9667) 2025-08-01 17:34:43 +00:00
CONTRIBUTING.md doc: triage 2024-07-26 18:24:06 +02:00
flake.lock chore: robustify Nix shell (#8141) 2025-04-28 15:08:32 +00:00
flake.nix chore: remove broken Nix build (#9910) 2025-08-14 08:31:39 +00:00
lean-toolchain doc: VS Code dev setup (#2961) 2023-11-30 08:35:03 +00:00
lean.code-workspace chore: add the lean4 extension to the vscode workspace (#3059) 2023-12-14 08:58:21 +00:00
LICENSE chore: remove LICENSE header that confused GitHub 2021-11-18 09:42:35 +01:00
LICENSES feat: ship cadical (#4325) 2024-08-23 09:13:27 +00:00
README.md doc: fix examples link 2025-08-22 16:28:01 +02:00
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 Setting Up Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean.