Lean 4 programming language and theorem prover

The "batteries included" extended library for the Lean programming language and theorem prover

White-box automation for Lean 4

Repository for formalization of the Polynomial Freiman Ruzsa conjecture (and related results)

Lean 4 kernel / 'external checker' written in Lean 4

Formalisation of the Cambridge Part II and Part III courses Graph Theory, Combinatorics, Extremal and Probabilistic Combinatorics in Lean

embedding MLIR in LEAN

Two-Level Type Theory

Lean4 backend using `libgccjit`!

libgccjit bindings for Lean4

Replay the `Environment` for a given Lean module, ensuring that all declarations are accepted by the kernel.