Claude Fable 5 produced counterexample to 87-year-old Jacobian conjecture

Claude Fable 5 produced a hand-checkable counterexample to the Jacobian conjecture, an open problem since 1939. Smale listed it as Problem #16 on his 18-problem list for the 21st century, alongside P vs NP, though the result awaits full review.
3 sources
Daily brief
Get tomorrow's AI brief in your inbox
More stories today
- Law firms urged to reclaim AI sovereignty from frontier labs
- Thread ping-back graph as primitive multiagent AGI future
- OpenAI asks judge to toss Apple's trade secret lawsuit
- Five-parallel-agent AI sales team runs inside Claude Code
- Deep Eye AI pen-testing tool scans 45+ vulnerability types