leanprover/con-leche

Library implementing type inference/checking functionality based on the Lean theorem prover

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

Leanstral's fork of SafeVerify, which we use for code agent training and as part of our evaluation stack.

Lean evaluation and metaprogramming utilities for provers.

SMT-based reasoning core for Lean4

Lean Theorem Prover MCP

Experiments on automation for Lean

Minimal open-source implementation of AlphaProof and HyperTree Proof Search.