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Liangcheng Song

2 accepted papers

2026

Euclean: Automated Geometry Problem Formalization with Unified Verification in Lean

ICML 2026poster

Recent formal reasoning systems achieve IMO-level performance, but create a fragmented landscape: algebra and number theory use Lean, while geometry relies on domain-specific languages with limited formal guarantees. This fragmentation increases the trusted computing base and hinders unified model d…

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2025

Reviving DSP for Advanced Theorem Proving in the Era of Reasoning Models

NeurIPS 2025poster

Recent advancements, such as DeepSeek-Prover-V2-671B and Kimina-Prover-Preview-72B, demonstrate a prevailing trend in leveraging reinforcement learning (RL)-based large-scale training for automated theorem proving. Surprisingly, we discover that even without any training, careful neuro-symbolic coor…

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