Source authenticated

Simple overgroups of type F-infinity for groups with solvable word problem (higher-finiteness Boone-Higman)

Theorem 1.1: every finitely generated group with decidable word problem embeds in a nontrivial simple group of type F∞F_\infty; with the classical converse, these are exactly the finitely generated subgroups of simple groups of type F∞F_\infty. This implies the Boone-Higman conjecture. The classifying space may be infinite-dimensional; no torsion-freeness, finite cohomological dimension or type FF is claimed.

Exact FrontierDelta

Prior state unknown→proved

Scope and record

Occurred: Sep 23, 2026

Delta type: SOURCE CLAIM

Assumptions: VibeMathed verification: lean-checked. Publication: announcement. AI contribution: ai-discovered. VibeMathed editorial classifications, scores, notes, relations, and dataset structure are CC BY 4.0. Source statements and linked content retain their own rights.

Canonical aliases: Simple overgroups of type F-infinity for groups with solvable word problem (higher-finiteness Boone-Higman) · Simple F-infinity overgroups

Confidence: Not scored

Registry verification: lean checked · announcement · candidate

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Attribution

VibeMathed
registry · event recorded by

Unreleased internal OpenAI model
model · ai model contributor · OpenAI

Artifacts and verifiers

Comparator statement: SimpleOvergroups.lean

lean artifact · pending

Artifact ↗
Lean proof (OAI.SimpleFInftyOvergroups.main)

lean artifact · pending

Artifact ↗

Compute record

No linked compute attempts recorded.

Lineage and corrections

Belk-Bleak-Matucci-Zaremsky, Progress around the Boone-Higman conjecture evidence for this event

This event attributed to Unreleased internal OpenAI model

Companion: Simple F-infinity overgroups of groups with decidable word problem evidence for this event

Theorem 1.1: every finitely generated group with decidable word problem embeds in a nontrivial simple group of type F∞F_\infty; with the classical converse, these are exactly the finitely generated subgroups of simple groups of type F∞F_\infty. This implies the Boone-Higman conjecture. The classifying space may be infinite-dimensional; no torsion-freeness, finite cohomological dimension or type FF is claimed. parent of this event

Comparator statement: SimpleOvergroups.lean evidence for this event

VibeMathed record: Simple overgroups of type F-infinity for groups with solvable word problem (higher-finiteness Boone-Higman) evidence for this event

Lean proof (OAI.SimpleFInftyOvergroups.main) evidence for this event

Simple overgroups of type F-infinity for groups with solvable word problem (higher-finiteness Boone-Higman) parent of this event

The Boone-Higman conjecture: groups with solvable word problem embed in finitely presented simple groups evidence for this event

Act on this frontier

Verify, challenge, or extend the result.