AI RESEARCH
Improving Lean4 Autoformalization via Cycle Consistency Fine-tuning
arXiv CS.CL
•
ArXi:2603.24372v1 Announce Type: new Autoformalization - automatically translating natural language mathematical texts into formal proof language such as Lean4 - can help accelerate AI-assisted mathematical research, be it via proof verification or proof search. I fine-tune Qwen3.5-2B with LoRA for natural language to Lean4 formalization on FineLeanCorpus and consider three