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Lean

Lean Prover

1.4k followers
https://lean-lang.org/
@leanprover@functional.cafe
@leanprover
company/98362384

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lean4 lean4 Public

Lean 4 programming language and theorem prover

Lean 9.6k 1.1k

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Showing 10 of 222 repositories

lean-beam Public
Claude/Codex skill and local workflow layer for efficient interaction with Lean 4 and Monte-Carlo Tree Search.

leanprover/lean-beam's past year of commit activity

Lean 41 Apache-2.0 5 5 19 Updated Oct 19, 2026
lean-workbench Public
Online Lean Workbench

leanprover/lean-workbench's past year of commit activity

TypeScript 11 Apache-2.0 1 36 2 Updated Oct 19, 2026
downstream-lean4 Public
A collection of packages downstream of Lean 4.

leanprover/downstream-lean4's past year of commit activity

Lean 6 4 0 45 Updated Oct 19, 2026
lean4-pr-releases Public
Automated releases from leanprover/lean4 PRs

leanprover/lean4-pr-releases's past year of commit activity

3 3 0 0 Updated Oct 19, 2026
cslib Public
The Lean Computer Science Library (CSLib)

leanprover/cslib's past year of commit activity

Lean 771 Apache-2.0 216 50 163 Updated Oct 19, 2026
downstream Public
Scripts for managing lake package monorepos.

leanprover/downstream's past year of commit activity

TypeScript 0 1 0 4 Updated Oct 19, 2026
lean4 Public
Lean 4 programming language and theorem prover

leanprover/lean4's past year of commit activity

Lean 9,601 Apache-2.0 1,053 1,104 (6 issues need help) 717 Updated Oct 19, 2026
reference-manual Public
The Lean reference manual

leanprover/reference-manual's past year of commit activity

Lean 135 Apache-2.0 69 117 20 Updated Oct 19, 2026
radar Public
"Do you know how fast you were going?"

leanprover/radar's past year of commit activity

Java 7 1 0 0 Updated Oct 20, 2026
downstream-lean4-fork-mathlib4 Public Forked from leanprover-community/mathlib4
A fork of mathlib4 used by downstream-lean4 to open PRs

leanprover/downstream-lean4-fork-mathlib4's past year of commit activity

0 1,796 0 0 Updated Oct 19, 2026

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lean4 lean theorem-proving

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