Lean 4 programming language and theorem prover

The math library of Lean 4

A Lean companion to Analysis I

A collection of formalized statements of conjectures in Lean.

A project to digitalise results from physics into Lean.

The Lean Computer Science Library (CSLib)

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

White-box automation for Lean 4

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

Lean 4 port of Iris, a higher-order concurrent separation logic framework

Canonical is a performant sound and complete type inhabitation solver for dependent type theory.

Write C shims from within Lean code.

maze game encoded in Lean 4 syntax

computable implementation of real numbers in Lean4

Chess in Lean 4

📚 (WIP) Rewriting Software Foundations in Lean 4

These are Lean translations of Ninety-Nine Haskell Problems (WIP)

Python in Lean 4