Haocheng Wang
Also known as 王浩丞
Haocheng Wang is a mathematician and AI researcher whose work applies language models to formal theorem proving and algorithm verification. He earned an honours degree in mathematics and applied mathematics at Xiamen University in 2025. As a DeepSeek AI student researcher, he coauthored DeepSeek-Prover-V1.5 and appeared in the DeepSeek-V3 author list; at ByteDance Seed, he built a proof-scoring pipeline and led DeltaProver data work. He is a PhD student at HKUST(GZ) and a visiting PhD student at ETH Zürich; in 2026, he co-organized the AI4Math Workshop at ICML as program chair.
Timeline
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2020–2025
Mathematics at Xiamen University
He studies mathematics and applied mathematics at Xiamen University from September 2020 to June 2025 and completes an honours bachelor's degree. His thesis formalizes auction theory.
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2024
DeepSeek-Prover-V1.5 model
He joins DeepSeek AI as a student researcher in June 2024 and coauthors DeepSeek-Prover-V1.5. The Lean 4 theorem-proving model uses reinforcement learning with proof-assistant feedback.
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2024
DeepSeek-V3 technical report
In 2024, the DeepSeek-V3 technical report lists him as a coauthor.
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January 2025
Researcher at ByteDance Seed
He joins ByteDance Seed as a student researcher in January 2025. He builds a scoring and self-refinement pipeline for natural-language proofs, proposes a sketch-based reasoning method, and leads data initiatives for DeltaProver.
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April 2025
DeepSeek-Prover-V2 and ProverBench
In April 2025, he coauthors the DeepSeek-Prover-V2 paper on reinforcement learning with subgoal decomposition for formal theorem proving. He develops ProverBench, a collection of 325 formalized problems for evaluation.
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July 2025
Delta Prover for formal math
In July 2025, he coauthors a paper that presents Delta Prover, a Lean 4 agent that uses reflective decomposition and iterative proof repair to construct formal proofs.
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Since 2025
Visiting PhD at ETH Zürich
He joins Prof. Rasmus Kyng's group at ETH Zürich as a post graduate student in July 2025. In August 2025, he begins a visiting PhD at D-INFK, working with Prof. Kyng and Dr. Sorrachai Yingchareonthawornchai on algorithm verification and formal reasoning.
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Since 2026
PhD at HKUST(GZ) and program chair
In January 2026, he begins a direct PhD in Data Science and Analytics at HKUST(GZ), supervised by Zhijiang Guo. He is a visiting PhD student at ETH Zürich and serves as program chair for the 3rd AI4Math Workshop at ICML, which takes place in July 2026.
Sources and credits
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- Haocheng Wang
- DeepSeek-Prover-V1.5: Harnessing Proof Assistant Feedback for Reinforcement Learning and Monte-Carlo Tree Search
- DeepSeek-V3 Technical Report
- DeepSeek-Prover-V2: Advancing Formal Mathematical Reasoning via Reinforcement Learning for Subgoal Decomposition
- Solving Formal Math Problems by Decomposition and Iterative Reflection
- New staff members 2025 – Department of Computer Science | ETH Zurich
- Language Agent Reasoning & Knowledge Lab
- 3rd AI for Math Workshop @ ICML 2026