ProofForge
github.com/sanexxxx777/proofforge- Category
- AI Agents
- Rank
- No. 3857Tools index
Previous survey · No. 3665 ·
- Pricing
- Open Source
- Type
- AGENT
- Use case
- Research & Education
- GitHub
- 2 stars
- Date
About
ProofForge is an AI-agent pipeline that decomposes math problems into pieces, proves them, and formalizes the proofs in Lean 4/Mathlib, so every step is rechecked by the Lean kernel rather than trusted from the model's output. It has produced six pull requests merged into Google DeepMind's formal-conjectures repository, including a proved upper bound for Erdős problem #1084 and the computed 24-digit 5th unitary perfect number for Erdős problem #1052.
At a glance
ProofForge documents an agent workflow for decomposing mathematical problems and checking formal proofs with Lean 4. It is worth reading if you want examples of moving from a proof idea to a machine-checked statement.
Good fit
Lean users reviewing how to split a problem into lemmas and audit the formal result.
Consider something else when
Use a turnkey proving tool if you need a hosted interface with a documented execution workflow.
Start here
Choose one included proof. Compare its theorem statement with the intended result, then check the proof with Lean and inspect its axioms.
Cost and requirements
Apache-2.0 repository with Lean proof sources and references to upstream contributions. Verification needs an appropriate Lean and Mathlib environment.
Limits to know
The kernel verifies the formal statement under its assumptions. It cannot decide whether that statement faithfully represents the original problem.
Sources checked 2026-11-05. Source-based assessment.
Why it made the leaderboard
An agent pipeline that only counts a proof as done when Lean's kernel accepts it, with several proofs already merged into Google DeepMind's formal-conjectures repository as concrete, checkable validation.
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