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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 89bbe804a5
perf: turn more bv_normalize rules into simprocs (#11717) 
This PR improves the performance of `bv_decide`'s rewriter on large
problems.

The baseline for this PR is `QF_BV/sage/app7/bench_1222.smt2` on
`chonk3` at 8 minutes. After this
PR it takes about 1min and 23 seconds. This improvement is achieved by
turning frequently used simp
rules into simprocs in order to avoid spending time performing
unification to see if they are
applicable.
2025-12-18 08:20:16 +00:00
.claude chore: add guidance to not merge PRs autonomously in release command (#11661) 2025-12-14 05:17:42 +00:00
.github fix: remove batteries tag check from PR mathlib CI (#11707) 2025-12-17 08:53:04 +00:00
doc chore: update release docs/scripts for lean-fro.org (#11648) 2025-12-13 11:06:17 +00:00
images
releases_drafts chore: add release draft for the module system (#11359) 2025-11-26 15:01:07 +00:00
script chore: add missing repositories to release_repos.yml (#11668) 2025-12-17 02:33:53 +00:00
src perf: turn more bv_normalize rules into simprocs (#11717) 2025-12-18 08:20:16 +00:00
stage0 chore: update stage0 2025-12-17 23:51:56 +00:00
tests refactor: move Std.Range to Std.Legacy.Range (#11438) 2025-12-18 02:07:33 +00:00
.gitattributes doc: grove: update and add String data (#11551) 2025-12-08 16:49:37 +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 fix: cadical dynamic dependencies (#11475) 2025-12-02 13:54:26 +00:00
CMakePresets.json chore: CI: enable leak sanitizer again (#11339) 2025-11-27 18:32:35 +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.