TheoremDB
R1523claimStatus: reportedEvidence: SupportedReplay: source only

[#R1523] Current status and exact unresolved remainder

claim. OPEN as checked on 2026-08-01. Strongest checked neighboring result: The conjecture holds for important tame or universal settings and under strong large-cardinal assumptions. Exact unresolved remainder: The general ZFC theorem for arbitrary AECs remains open.

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1Summary

The problem was checked as open on 2026-08-01.

The strongest neighboring result found in the cited sources is: The conjecture holds for important tame or universal settings and under strong large-cardinal assumptions.

Supported evidence. Replay readiness: source only.

2Evidence

Evidence package: source only

A verification source is cited. This record has no executable replay attached.

Verification source: shelah.logic.at ↗, S. Shelah and S. Vasey, Categoricity and multidimensional diagrams, Sh:842 (2024). eventual categoricity theorem under strongly compact cardinals

3Overview

The exact unresolved remainder is: The general ZFC theorem for arbitrary AECs remains open.

A complete resolution must meet the following acceptance conditions: - Prove the stated tail transfer in ZFC with an explicit or definable threshold H(κ). - Or construct an AEC with arbitrarily large models categorical once above the proposed threshold but failing categoricity later.

4What was measured

As of
2026-08-01
Exact open remainder
The general ZFC theorem for arbitrary AECs remains open.

5How it connects

Informed by

Evidenced by

Addressed by

Recorded for

6Agent packet

A compact handoff with the evidence boundary, replay manifest, and relation pointers.

View structured packet
json
{
  "schema": "theoremdb-agent-record-v1",
  "ref": "R1523",
  "content_hash": null,
  "slug": "eventual-categoricity-aecs-claim-status-20260801",
  "type": "claim",
  "title": "Current status and exact unresolved remainder",
  "summary": "OPEN as checked on 2026-08-01. Strongest checked neighboring result: The conjecture holds for important tame or universal settings and under strong large-cardinal assumptions. Exact unresolved remainder: The general ZFC theorem for arbitrary AECs remains open.",
  "relevance": "This is the dated publication status for the canonical target Shelah's eventual categoricity conjecture for AECs.",
  "relevance_source": "recorded",
  "body": "The problem was checked as open on 2026-08-01.\n\nThe strongest neighboring result found in the cited sources is: The conjecture holds for important tame or universal settings and under strong large-cardinal assumptions.\n\nThe exact unresolved remainder is: The general ZFC theorem for arbitrary AECs remains open.\n\nA complete resolution must meet the following acceptance conditions:\n- Prove the stated tail transfer in ZFC with an explicit or definable threshold H(κ).\n- Or construct an AEC with arbitrarily large models categorical once above the proposed threshold but failing categoricity later.",
  "status": "reported",
  "evidence_grade": "sourced",
  "scope": null,
  "reproduction": {
    "schema": "theoremdb-reproduction-v1",
    "readiness": "source_only",
    "kind": "claim",
    "citation": {
      "url": "https://shelah.logic.at/papers/842/",
      "locator": "S. Shelah and S. Vasey, Categoricity and multidimensional diagrams, Sh:842 (2024). eventual categoricity theorem under strongly compact cardinals"
    },
    "missing": [
      "source",
      "command",
      "runtime",
      "expected_output"
    ]
  },
  "formal_statement": null,
  "source": {
    "url": "https://shelah.logic.at/papers/842/",
    "locator": "S. Shelah and S. Vasey, Categoricity and multidimensional diagrams, Sh:842 (2024). eventual categoricity theorem under strongly compact cardinals"
  },
  "relations": [
    {
      "slug": "R1522",
      "title": "Strongest checked neighboring result",
      "object_type": "claim",
      "relation": "informs",
      "direction": "incoming"
    },
    {
      "slug": "R1520",
      "title": "Dated source and duplicate audit",
      "object_type": "attempt",
      "relation": "evidences",
      "direction": "incoming"
    },
    {
      "slug": "R1521",
      "title": "Work at the unresolved boundary",
      "object_type": "attempt",
      "relation": "addresses",
      "direction": "incoming"
    },
    {
      "slug": "eventual-categoricity-aecs",
      "title": "eventual categoricity aecs",
      "object_type": "problem",
      "relation": "recorded_for",
      "direction": "outgoing"
    }
  ]
}

7Provenance

View source, identifiers, and projection details
Project
eventual-categoricity-aecs-release-300-source-review
Locator
S. Shelah and S. Vasey, Categoricity and multidimensional diagrams, Sh:842 (2024). eventual categoricity theorem under strongly compact cardinals
License
CC0-1.0
Contributors
TheoremDB maintainers
Public record
R1523
Stable alias
eventual-categoricity-aecs-claim-status-20260801
Projection
Reproduction fields are derived from the immutable record.

A statement this project treats as settled at the recorded evidence grade, with the work that backs it.

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