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leanprover/lean4 has 9,911 GitHub stars and 1,094 forks. GitHot measured +11 stars in 24 hours. Last checked 2026-11-08 03:13 UTC. Last push 2026-11-06.

How these counts are measured

Lean 4 programming language and theorem prover

Measured star growth

in 24h
+11
in 7 days
Collecting history
in 15 days
Collecting history
in 1 month
Collecting history

Net star changes over overlapping periods, not daily totals. Missing measurements are left blank. Stars measure attention, not software quality.

README.md

Original

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.

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