Axiom Math says it formally verified the Stacks Project
Original title: Axiom Math wants to keep AI slop out of mathematics
Agents turned about 7,654 pages into roughly 16 million lines of Lean checked by a proof assistant.
Axiom Math, described as a $1.6 billion startup, announced it had formally verified the Stacks Project, an open algebraic-geometry reference started in 2005. Its agents produced about 16 million lines of Lean so a proof assistant can check interconnected theorems and definitions. The company, which raised a $200 million Series A led by Menlo Ventures, says the library can support later proofs and AI-written software.
Unconfirmed: The claim that the full Stacks Project is formally verified comes from Axiom’s announcement.
- The Stacks Project covers algebra, geometry, and number theory across about 7,654 pages.
- CEO Carina Hong founded Axiom in March 2025 after leaving a Stanford math Ph.D.
- Menlo Ventures led a $200 million Series A announced in March.
- Agents worked in parallel and selected tasks inside an imposed hierarchy.
- Axiom says algebraic geometry had been a major gap in Lean formalization.
- Products
- Stacks ProjectLean
- Organizations
- Axiom MathMenlo Ventures
From the original article
4 min read at techcrunch.com
As AI floods math with unchecked proofs, Axiom Math is betting on verification. The startup’s AI agents just formally verified the Stacks Project, one of the field’s biggest libraries.
By Aditya Mehta · techcrunch.com
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