LeanMarathon: Toward Reliable AI Co-Mathematicians through Long-Horizon Lean Autoformalization

In three linesLeanMarathon is a multi-agent system for reliable research-level autoformalization in Lean. It uses an evolving blueprint (Lean file serving as proof skeleton, natural-language proof graph, and shared record) coordinated by four specialized agents. On two recent papers spanning four Erdős problems, it formalizes seven target theorems with no sorry and proves 258 lemmas.

Summary generated by Claude — human-verified