Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
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Henrik Böving 5c2ae7b414
perf: optimize Name.toString (#9594)
This PR optimizes `Lean.Name.toString`, giving a 10% instruction
benefit.

Crucially this is a breaking change as the old `Lean.Name.toString`
method used to support a method for identifying tokens. This method is
now available as `Lean.Name.toStringWithToken` in order to allow for
specialization of the (highly common) `toString` code path which sets
this function to just return `false`.
2025-07-29 07:20:56 +00:00
.github chore: upload build directory as artifact in cache CI (#9600) 2025-07-28 20:29:51 +00:00
doc doc: building core with Lake (#9547) 2025-07-26 06:13:09 +00:00
images
nix chore: fix Nix build 2025-04-21 18:40:11 +02:00
releases_drafts chore: updates to release_checklist.md (#7817) 2025-04-04 03:45:36 +00:00
script refactor: module-ize Lean (#9330) 2025-07-25 12:02:51 +00:00
src perf: optimize Name.toString (#9594) 2025-07-29 07:20:56 +00:00
stage0 chore: update stage0 2025-07-28 18:23:37 +00:00
tests chore: add failing grind test about exponents (#9611) 2025-07-29 02:53:43 +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: Update CODEOWNERS (#9232) 2025-07-07 13:11:41 +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: robustify Nix shell (#8141) 2025-04-28 15:08:32 +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
LICENSES feat: ship cadical (#4325) 2024-08-23 09:13:27 +00:00
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.

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See Setting Up Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean.