Intern-S2 Helps Mathematicians Prove 3D Ghys Conjecture, Verified in Lean

Shanghai AI Lab's multimodal model Intern-S2 helped mathematicians prove the three-dimensional case of the Ghys conjecture, posed in 1995. Peking University researchers verified the main results in the Lean theorem prover, producing about 550,000 lines of Lean code with up to 100 agents running in parallel. The paper was posted to arXiv on September 29.

Pandaily

Open source

Intern-S2 Helps Mathematicians Prove 3D Ghys Conjecture, Verified in Lean

Intern-S2 produced a 400-page derivation report in its first reasoning round
Over seven rounds its problem graph grew from 15 to 389 nodes, output reaching about 1,000 pages
Lean formalization took about five days and roughly 550,000 lines of code
arXiv paper posted September 29, revised October 13, single author Jiesong Zhang

#ShanghaiAILab#Intern-S2#Lean

Intern-S2 Helps Mathematicians Prove 3D Ghys Conjecture, Verified in Lean

Shanghai AI Lab releases Intern-S2-397B science multimodal model

OpenAI claims Navier-Stokes blow-up proof, mathematicians dispute it

Lean Emerges as AI's Trust Layer for Verified Code

Shanghai AI Lab open-sources Intern-Decision models from 0.8B to 4B