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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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Luisa Cicolini 594587541c
feat: add Bitvec.[(toInt, toFin)_twoPow, toNat_twoPow_of_le, toNat_twoPow_of_lt, toNat_twoPow_eq_ite] (#7225) 
This PR contains `BitVec.(toInt, toFin)_twoPow` theorems, completing the
API for `BitVec.*_twoPow`. It also expands the `toNat_twoPow` API with
`toNat_twoPow_of_le`, `toNat_twoPow_of_lt`, as well as
`toNat_twoPow_eq_if` and moves `msb_twoPow` up, as it is used in the
`toInt_msb` proof.

---------

Co-authored-by: Henrik Böving <hargonix@gmail.com>
2025-03-17 12:51:58 +00:00
.github chore: don't run MacOS aarch64 in merge queue (#7439) 2025-03-11 14:35:10 +00:00
doc chore: post-#7100 cleanup (#7196) 2025-02-23 22:46:22 +00:00
images chore(CMakeLists.txt): move Lean logo to make sure we can test leanemacs without installing Lean 2015-01-31 17:38:49 -08:00
nix fix: Windows stage0 linking (#6622) 2025-01-14 09:09:50 +01:00
releases chore: copy v4.17.0 release notes from releases/v4.17.0 branch (#7325) 2025-03-04 11:24:51 +00:00
releases_drafts chore: cherry-pick release notes from releases/v4.15.0 and releases/v4.16.0 (#6520) 2025-01-04 01:25:33 +00:00
script fix: indenting in release notes script (#7326) 2025-03-12 23:02:02 +00:00
src feat: add Bitvec.[(toInt, toFin)_twoPow, toNat_twoPow_of_le, toNat_twoPow_of_lt, toNat_twoPow_eq_ite] (#7225) 2025-03-17 12:51:58 +00:00
stage0 chore: update stage0 2025-03-15 08:02:41 +00:00
tests feat: Neg instance for unsigned integers (#7487) 2025-03-17 09:06:14 +00:00
.gitattributes chore: Do not hide stage0/src/stdlib_flags.h from diffs 2023-09-13 19:29:25 +02:00
.gitignore feat: support Lake for building Lean core oleans (#3886) 2024-06-13 16:18:24 +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 feat: upgrade cadical to 2.1.2 (#7347) 2025-03-05 17:58:58 +00:00
CMakePresets.json fix: prevent Task.get deadlocks from threadpool starvation (#6758) 2025-01-23 23:01:39 +00:00
CODEOWNERS chore: adjust CODEOWNERS (#6327) 2024-12-10 08:37:20 +00:00
CONTRIBUTING.md doc: triage 2024-07-26 18:24:06 +02:00
flake.lock feat: upgrade cadical to 2.1.2 (#7347) 2025-03-05 17:58:58 +00:00
flake.nix feat: upgrade cadical to 2.1.2 (#7347) 2025-03-05 17:58:58 +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 chore: update documentation title and link README to reference (#6409) 2024-12-17 22:18:56 +00:00
RELEASES.md chore: split RELEASES.md into releases/ folder (#6918) 2025-02-03 11:04:09 +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 (documentation source: doc/make/index.md).