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Lean 4 programming language and theorem prover

Apache-2.0 license

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9.7k stars

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Name		Name	Last commit message	Last commit date
.claude		.claude
.github		.github
.vscode		.vscode
doc		doc
images		images
script		script
src		src
stage0		stage0
tests		tests
.gitattributes		.gitattributes
.gitignore		.gitignore
.gitpod.Dockerfile		.gitpod.Dockerfile
.gitpod.yml		.gitpod.yml
.ignore		.ignore
AGENTS.md		AGENTS.md
CMakeLists.txt		CMakeLists.txt
CMakePresets.json		CMakePresets.json
CODEOWNERS		CODEOWNERS
CONTRIBUTING.md		CONTRIBUTING.md
LICENSE		LICENSE
LICENSES		LICENSES
README.md		README.md
RELEASES.md		RELEASES.md
flake.lock		flake.lock
flake.nix		flake.nix
lean-toolchain		lean-toolchain

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This is the repository for Lean 4.

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See Install Lean.

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Please read our Contribution Guidelines first.

Building from Source

See Building Lean.

About

Lean 4 programming language and theorem prover

Apache-2.0 license

Custom properties

9.7k stars

85 watching

Report repository

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