Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
Find a file
Leonardo de Moura aad98fe749
fix: revert Nat.sub embedding into Int (#9930)
This PR reverts the way `grind cutsat` embeds `Nat.sub` into `Int`. It
fixes a regression reported by David Renshaw on Zulip.


https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/v4.2E23.2E0/near/534646557
2025-08-15 16:06:31 +00:00
.github chore: CI: include tests in rebootstrap check (#9788) 2025-08-07 15:37:36 +00:00
doc doc: freshen up Mac OSX build instructions (#9618) 2025-07-29 21:42:24 +00:00
images
releases_drafts chore: updates to release_checklist.md (#7817) 2025-04-04 03:45:36 +00:00
script fix: unfoldReducible in grind (#9813) 2025-08-10 00:02:05 +00:00
src fix: revert Nat.sub embedding into Int (#9930) 2025-08-15 16:06:31 +00:00
stage0 chore: update stage0 2025-08-15 12:21:02 +00:00
tests fix: revert Nat.sub embedding into Int (#9930) 2025-08-15 16:06:31 +00:00
.gitattributes
.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
CMakeLists.txt chore: compile stage 0 against correct version string (#9085) 2025-06-29 20:52:46 +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
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
lean.code-workspace
LICENSE
LICENSES
README.md chore: remove old documentation site (#7974) 2025-05-14 14:31:33 +00:00
RELEASES.md chore: updates to release_checklist.md (#7817) 2025-04-04 03:45:36 +00:00

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.