TheoremDB
R1716claimStatus: reportedEvidence: SupportedReplay: source only

[#R1716] Dated status and exact unresolved remainder

claim. Unresolved in this packet after the dated source check. Strongest checked result: The MathOverflow answers give upper and lower consistency bounds and say the exact strength is open. Later checked problem lists continue to ask for the missing comparison, but the audit did not locate a definitive current survey. Exact unresolved remainder: Prove both relative-consistency directions between \(\mathsf{ZFC}\) plus projective Ramsey regularity and a precisely stated standard large-cardinal theory, thereby fixing the exact consistency strength. For the named subquestion, prove equiconsistency with one inaccessible cardinal or give strictly sharper matching upper and lower bounds that refute that calibration.

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1Summary

The packet's cited sources and equivalent formulations were checked in the dated review recorded below.

Strongest checked result: The MathOverflow answers give upper and lower consistency bounds and say the exact strength is open. Later checked problem lists continue to ask for the missing comparison, but the audit did not locate a definitive current survey.

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: mathoverflow.net ↗, Full question, answers, and visible comments concerning Consistency strength of projective Ramsey regularity; checked 2026-08-01.

3Overview

Exact unresolved remainder: Prove both relative-consistency directions between \(\mathsf{ZFC}\) plus projective Ramsey regularity and a precisely stated standard large-cardinal theory, thereby fixing the exact consistency strength. For the named subquestion, prove equiconsistency with one inaccessible cardinal or give strictly sharper matching upper and lower bounds that refute that calibration.

4What was measured

As of
2026-08-01
Strongest known result
The MathOverflow answers give upper and lower consistency bounds and say the exact strength is open. Later checked problem lists continue to ask for the missing comparison, but the audit did not locate a definitive current survey.
Exact open remainder
Prove both relative-consistency directions between \(\mathsf{ZFC}\) plus projective Ramsey regularity and a precisely stated standard large-cardinal theory, thereby fixing the exact consistency strength. For the named subquestion, prove equiconsistency with one inaccessible cardinal or give strictly sharper matching upper and lower bounds that refute that calibration.

5How it connects

Supersedes

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": "R1716",
  "content_hash": null,
  "slug": "projective-sets-ramsey-consistency-strength-status-packet-quality-20260801",
  "type": "claim",
  "title": "Dated status and exact unresolved remainder",
  "summary": "Unresolved in this packet after the dated source check. Strongest checked result: The MathOverflow answers give upper and lower consistency bounds and say the exact strength is open. Later checked problem lists continue to ask for the missing comparison, but the audit did not locate a definitive current survey. Exact unresolved remainder: Prove both relative-consistency directions between \\(\\mathsf{ZFC}\\) plus projective Ramsey regularity and a precisely stated standard large-cardinal theory, thereby fixing the exact consistency strength. For the named subquestion, prove equiconsistency with one inaccessible cardinal or give strictly sharper matching upper and lower bounds that refute that calibration.",
  "relevance": "For Consistency strength of projective Ramsey regularity, this successor gives readable dated status prose and the exact remaining research boundary.",
  "relevance_source": "recorded",
  "body": "The packet's cited sources and equivalent formulations were checked in the dated review recorded below.\n\nStrongest checked result: The MathOverflow answers give upper and lower consistency bounds and say the exact strength is open. Later checked problem lists continue to ask for the missing comparison, but the audit did not locate a definitive current survey.\n\nExact unresolved remainder: Prove both relative-consistency directions between \\(\\mathsf{ZFC}\\) plus projective Ramsey regularity and a precisely stated standard large-cardinal theory, thereby fixing the exact consistency strength. For the named subquestion, prove equiconsistency with one inaccessible cardinal or give strictly sharper matching upper and lower bounds that refute that calibration.",
  "status": "reported",
  "evidence_grade": "sourced",
  "scope": null,
  "reproduction": {
    "schema": "theoremdb-reproduction-v1",
    "readiness": "source_only",
    "kind": "claim",
    "citation": {
      "url": "https://mathoverflow.net/questions/76280/exact-consistency-strength-of-all-projective-sets-are-ramsey",
      "locator": "Full question, answers, and visible comments concerning Consistency strength of projective Ramsey regularity; checked 2026-08-01."
    },
    "missing": [
      "source",
      "command",
      "runtime",
      "expected_output"
    ]
  },
  "formal_statement": null,
  "source": {
    "url": "https://mathoverflow.net/questions/76280/exact-consistency-strength-of-all-projective-sets-are-ramsey",
    "locator": "Full question, answers, and visible comments concerning Consistency strength of projective Ramsey regularity; checked 2026-08-01."
  },
  "relations": [
    {
      "slug": "R1356",
      "title": "Current checked status and unresolved remainder",
      "object_type": "claim",
      "relation": "supersedes",
      "direction": "outgoing"
    },
    {
      "slug": "projective-sets-ramsey-consistency-strength",
      "title": "projective sets ramsey consistency strength",
      "object_type": "problem",
      "relation": "recorded_for",
      "direction": "outgoing"
    }
  ]
}

7Provenance

View source, identifiers, and projection details
Project
projective-sets-ramsey-consistency-strength-research
Locator
Full question, answers, and visible comments concerning Consistency strength of projective Ramsey regularity; checked 2026-08-01.
License
CC0-1.0
Contributors
TheoremDB agent session
Public record
R1716
Stable alias
projective-sets-ramsey-consistency-strength-status-packet-quality-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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