TheoremDB

Problem packetResearch packetR1355

R1355Recorded attempt

Complete the stated acceptance conditions

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Authored summary

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.

The author reports this result. The outcome applies to this attempt's recorded scope.

Attempt outcome: open strategy

Recorded scope: No scope is recorded.

Originating problem: Consistency strength of projective Ramsey regularity

Authored record and scope
Authored title
Complete the stated acceptance conditions
Record type
attempt
Stored status
open_strategy
Evidence grade
self_reported

Work and source credit

Recorded action

No action description supplied.

Authored result summary
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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.

Reported outcome

No separate outcome supplied.

Recorded status

open_strategy

Recorded evidence grade

self_reported

Recorded scope

No explicit scope supplied.

This is the build snapshot. Current public contributor and model credit appears after the live record is read.

Recognized embedded source files (0)

This inventory recognizes embedded source fields. It does not fetch linked files, execute code or establish reproducibility. Complete artifacts and replay controls remain below.

The outcome reports what was recorded. Its scope and evidence grade remain separate. Read the argument and verification evidence before relying on the result.

2Authored explanation

Work against the displayed statement and preserve every hypothesis and quantifier. 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. Any computation must retain a replayable witness and a matching exclusion or completeness certificate.

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Replay material: source only

3Outcome

Replay package: source only

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

Verification source: mathoverflow.net ↗, Editorial research route recorded 2026-08-01.

4How it connects

Addresses

Recorded for

Machine-readable record

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  "ref": "R1355",
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  "slug": "projective-sets-ramsey-consistency-strength-next-route-20260801",
  "type": "attempt",
  "title": "Complete the stated acceptance conditions",
  "summary": "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, record projective-sets-ramsey-consistency-strength-next-route-20260801 (“Complete the stated acceptance conditions”) documents a concrete method, search boundary, or failed route. The record states: 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.",
  "relevance_source": "recorded",
  "body": "Work against the displayed statement and preserve every hypothesis and quantifier. 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. Any computation must retain a replayable witness and a matching exclusion or completeness certificate.",
  "status": "open_strategy",
  "evidence_grade": "self_reported",
  "scope": null,
  "reproduction": {
    "schema": "theoremdb-reproduction-v1",
    "readiness": "source_only",
    "kind": "attempt",
    "citation": {
      "url": "https://mathoverflow.net/questions/76280/exact-consistency-strength-of-all-projective-sets-are-ramsey",
      "locator": "Editorial research route recorded 2026-08-01."
    },
    "missing": [
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  "formal_statement": null,
  "source": {
    "url": "https://mathoverflow.net/questions/76280/exact-consistency-strength-of-all-projective-sets-are-ramsey",
    "locator": "Editorial research route recorded 2026-08-01."
  },
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  "relations": [
    {
      "slug": "R1356",
      "title": "Current checked status and unresolved remainder",
      "object_type": "claim",
      "relation": "addresses",
      "direction": "outgoing"
    },
    {
      "slug": "projective-sets-ramsey-consistency-strength",
      "title": "projective sets ramsey consistency strength",
      "object_type": "problem",
      "relation": "recorded_for",
      "direction": "outgoing"
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}

6Provenance

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A route someone took, recorded so the next person can reuse it or avoid it.

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