Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
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Leonardo de Moura 62dc8d64fa
perf: use custom reduceCtorEq simproc in grind (#9293)
This PR replaces the `reduceCtorEq` simproc used in `grind` by a much
more efficient one. The default one use in `simp` is just overhead
because the `grind` normalizer is already normalizing arithmetic.
In a separate PR, we will push performance improvements to the default
`reduceCtorEq`.
2025-07-10 03:18:44 +00:00
.github chore: CI: restore cache in update-stage0 (#9179) 2025-07-03 20:55:14 +00:00
doc chore: update doc/dev/ffi.md after #9088 (#9112) 2025-07-01 01:00:59 +00:00
images
nix
releases_drafts
script chore: improvements to release automation (#9119) 2025-07-01 02:39:10 +00:00
src perf: use custom reduceCtorEq simproc in grind (#9293) 2025-07-10 03:18:44 +00:00
stage0 chore: update stage0 2025-07-08 14:35:54 +00:00
tests fix: make compiler.extract_closed option work again after migration (#9279) 2025-07-09 14:31:58 +00:00
.gitattributes
.gitignore feat: further release automation (#9092) 2025-06-30 05:44:10 +00:00
.gitpod.Dockerfile
.gitpod.yml
.ignore
CMakeLists.txt chore: compile stage 0 against correct version string (#9085) 2025-06-29 20:52:46 +00:00
CMakePresets.json
CODEOWNERS chore: Update CODEOWNERS (#9232) 2025-07-07 13:11:41 +00:00
CONTRIBUTING.md
flake.lock
flake.nix
lean-toolchain
lean.code-workspace
LICENSE
LICENSES
README.md
RELEASES.md

This is the repository for Lean 4.

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Installation

See Setting Up Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean.