{
  "schema_version": 1,
  "id": "evt-2026-frenzymath-poincare-formalization",
  "slug": "frenzymath-poincare-formalization",
  "title": {
    "en": "FrenzyMath releases a Comparator-checked AI-assisted Lean formalization of the Poincaré conjecture",
    "zh-CN": "FrenzyMath 发布经 Comparator 检查的 AI 辅助庞加莱猜想 Lean 形式化"
  },
  "dates": {
    "event": "2026-09-28",
    "first_public_claim": "2026-09-28",
    "paper_release": null,
    "artifact_release": "2026-09-28",
    "independently_verified": null,
    "added_to_chronicle": "2026-10-07",
    "last_updated": "2026-10-07"
  },
  "event_types": [
    "formalization",
    "proof",
    "system"
  ],
  "significance": {
    "tier": "H2",
    "rationale": {
      "en": "FrenzyMath's Poincaré development is a field milestone in AI-assisted formalization because it packages a complete smooth/topological Poincaré proof route into a multi-million-line Lean project and reports completion of most of the work within roughly half a month using agentic pipelines and publicly available commercial language models. The project exposes a Mathlib-facing statement, full-build evidence and Comparator/Nanoda verification. A separate team released another complete Lean development essentially concurrently, showing that research-scale geometric-analysis formalization had moved from an isolated demonstration to a reproducible frontier. Because the mathematical theorem was already known and the exact agent/human division is not reconstructed theorem by theorem, H2 is more appropriate than H1.",
      "zh-CN": "FrenzyMath 的庞加莱猜想形式化构成 AI 辅助形式化方向的领域级里程碑：该项目把完整的 smooth/topological Poincaré 证明路线组织成数百万行 Lean 工程，并报告主要工作在约 半个月内通过 agentic pipelines 与公开商用大语言模型完成。项目公开了面向 Mathlib 的独立 statement、全量构建证据以及 Comparator/Nanoda 验证。几乎同期，另一支团队 也发布了独立完整 Lean 开发，表明研究级几何分析形式化已经从孤立演示走向可重复的 前沿实践。由于数学定理本身早已解决，且逐定理的人机分工并未被完整重建，因此 H2 比 H1 更合适。"
    }
  },
  "mathematical_novelty": {
    "type": "formalization_of_known_result"
  },
  "interfaces": [
    "formal"
  ],
  "claim": {
    "en": "On 28 September 2026, FrenzyMath announced a complete Lean 4 formalization of the smooth and topological three-dimensional Poincaré conjecture, primarily following Morgan and Tian's exposition of the Hamilton–Perelman proof. The team reports a full Lean build and Comparator verification of two public endpoint statements using Lean's kernel and Nanoda with only the standard axioms propext, Classical.choice and Quot.sound. FrenzyMath reports that three AI developers with mathematical backgrounds and several volunteer mathematicians completed most of the work within half a month using publicly available commercial LLMs.",
    "zh-CN": "2026 年 9 月 28 日，FrenzyMath 宣布完成三维 smooth 与 topological 庞加莱猜想的 Lean 4 形式化，证明路线主要跟随 Morgan–Tian 对 Hamilton–Perelman 证明的阐释。 团队报告全量 Lean build 已通过，并使用 Comparator 对两个公开 endpoint statement 进行验证，同时由 Lean kernel 与 Nanoda 检查，允许的公理仅为 propext、 Classical.choice 与 Quot.sound。FrenzyMath 表示，三名具有数学背景的 AI 开发者与 数名志愿数学家使用公开商用 LLM，在约半个月内完成了大部分工作。"
  },
  "summary": {
    "en": "FrenzyMath reports about 3.2 million lines of Lean and less than USD 30,000 in LLM and compute costs for the project. The repository separates the Mathlib-only endpoint statements from the proof library and preserves Comparator configuration, verifier revisions, logs and source-provenance records. The announcement also notes that an independent team led by Ziyang Qin, Yuan Liao, Ayush Khaitan and Bennett Chow released another complete Poincaré Lean development earlier the same day; that separate arXiv paper records a full public build and says automated assistance was used for proofs and prose.",
    "zh-CN": "FrenzyMath 报告该项目约包含 320 万行 Lean，LLM 与计算服务器总成本低于 3 万美元。 仓库将仅依赖 Mathlib 的 endpoint statements 与证明库分离，并保存 Comparator 配置、 verifier 版本、日志和源码 provenance 记录。公告同时指出，Ziyang Qin、Yuan Liao、 Ayush Khaitan 与 Bennett Chow 等组成的独立团队在同一天稍早也发布了另一套完整 庞加莱 Lean 开发；该独立 arXiv 论文记录了公开全量构建，并说明证明与文字工作中使用了 自动化辅助。"
  },
  "why_it_matters": {
    "en": "Poincaré is a foundational modern theorem whose standard proof uses a large stack of geometric analysis, topology, partial differential equations and Ricci-flow machinery. Compressing a project of this scope into weeks of AI-assisted formalization demonstrates that frontier formal-mathematics agents can now operate over extensive prerequisite libraries rather than only isolated olympiad theorems or short research arguments. The near-simultaneous second formalization reinforces the historical signal while also discouraging a simplistic single-project priority claim.",
    "zh-CN": "庞加莱猜想是现代数学的基础性定理，其标准证明依赖庞大的几何分析、拓扑、偏微分方程与 Ricci flow 理论体系。把这种规模的项目压缩到数周 AI 辅助形式化，说明前沿形式数学 Agent 已能处理广泛前置理论库，而不再局限于孤立奥赛定理或短篇研究论证。近乎同期出现的第二套 独立形式化进一步强化了这一历史信号，同时也提醒 Chronicle 不应把里程碑简单归为单一项目 的优先权。"
  },
  "ai_role": {
    "level": "human_ai_collaboration",
    "description": {
      "en": "FrenzyMath describes the project as a collaboration among AI developers with mathematical backgrounds, volunteer mathematicians and publicly available commercial LLMs coordinated through agentic pipelines. The public announcement establishes substantial AI assistance but does not give a theorem-by-theorem reconstruction of model versus human intellectual contributions.",
      "zh-CN": "FrenzyMath 将该项目描述为具有数学背景的 AI 开发者、志愿数学家与公开商用 LLM 在 agentic pipelines 中协作完成。公开材料足以确认 AI 的实质参与，但没有逐定理重建 模型与人类的具体智力贡献。"
    }
  },
  "human_contribution": {
    "description": {
      "en": "Human developers and mathematicians designed and operated the pipelines, selected the proof route and sources, reviewed integration and provenance, and maintained the public verification surface and mathematical blueprint.",
      "zh-CN": "人类开发者与数学家负责设计和运行 pipeline、选择证明路线与文献来源、审查集成与 provenance，并维护公开验证界面及数学 blueprint。"
    }
  },
  "systems": [
    "lean",
    "comparator",
    "nanoda"
  ],
  "organizations": [
    "frenzymath",
    "pku-ai4math"
  ],
  "people": [],
  "problems": [
    "poincare-conjecture"
  ],
  "methods": [
    "agentic-formalization",
    "blueprint-guided-formalization",
    "formal-verification",
    "independent-kernel-checking"
  ],
  "verification": {
    "evidence_level": "E3",
    "status": "claimed",
    "formal_assurance": "machine_checked",
    "history": [
      {
        "date": "2026-09-28",
        "status": "claimed",
        "evidence_level": "E3",
        "note": {
          "en": "FrenzyMath's announcement and repositories expose the endpoint statements, proof library, full-build instructions and Comparator/Nanoda verification records. Chronicle has not independently replayed the artifact in this maintenance pass, so machine_checked records the released verification surface rather than an independently_replayed status.",
          "zh-CN": "FrenzyMath 的公告与公开仓库提供 endpoint statements、证明库、全量构建说明以及 Comparator/Nanoda 验证记录。本轮 Chronicle 没有自行独立重放该 artifact，因此 machine_checked 表示公开的机器检查证据，而不是 independently_replayed 状态。"
        }
      }
    ]
  },
  "sources": [
    {
      "id": "frenzymath-poincare-announcement-2026",
      "tier": "S2",
      "type": "official_announcement",
      "title": "Formalization of the Poincaré Conjecture",
      "url": "https://frenzymath.com/news/poincare-formalization/",
      "primary": true,
      "published_date": "2026-09-28",
      "accessed_at": "2026-10-07"
    },
    {
      "id": "frenzymath-poincare-repository",
      "tier": "S1",
      "type": "formal_artifact",
      "title": "Poincare Conjecture Lean formalization",
      "url": "https://github.com/frenzymath/Poincare-Conjecture",
      "primary": true,
      "published_date": null,
      "accessed_at": "2026-10-07"
    },
    {
      "id": "qin-liao-khaitan-chow-poincare-2026",
      "tier": "S1",
      "type": "paper",
      "title": "A Lean Formalization of the Hamilton--Perelman Proof of the Three-Dimensional Poincaré Conjecture",
      "url": "https://arxiv.org/abs/2609.33842",
      "primary": false,
      "published_date": "2026-09-27",
      "accessed_at": "2026-10-07"
    }
  ],
  "artifacts": [
    {
      "id": "frenzymath-poincare-lean",
      "kind": "proof",
      "title": "FrenzyMath Poincaré Lean project",
      "url": "https://github.com/frenzymath/Poincare-Conjecture"
    }
  ],
  "relationships": {
    "predecessors": [],
    "successors": [],
    "related": [
      "evt-2026-claude-flt-formalization",
      "evt-2026-formalflow-mipstarre"
    ]
  },
  "timeline": {
    "featured": true,
    "significance": "primary"
  },
  "tags": [
    "poincare-conjecture",
    "lean",
    "formalization",
    "comparator",
    "nanoda",
    "geometric-analysis",
    "ricci-flow",
    "ai-agents"
  ],
  "editorial": {
    "created_at": "2026-10-07",
    "last_reviewed": "2026-10-07",
    "reviewers": [
      "Charlie-Wang-03"
    ]
  },
  "corrections": []
}
