Vela

frontiers / frontier

Erdős problems frontier

constellation seal · derived from vfr_37aec80d874a0239
id
vfr_37aec80d874a0239
license
CC-BY-4.0
findings
1,256
accepted core
6
contested
0
links
17
sources
1,234
evidence
1,256
avg conf
0.98

used by 0 · replayed by 2 producers

e1271/1271 · statement.attested · reviewer:will-blair · 2026-06-10 · null→null

Reviewable change

back to review

add a finding

verified — A frozen deterministic verifier re-checked the claim and passed.accepted

Erdős Problem #505 has status 'disproved (lean)'. Statement: **Erdős Problem 505** (disproved). Borsuk's conjecture is false for sufficiently large $n$: there exists a dimension $n$ and a bounded set $S \subseteq \mathbb{R}^n$ with positive diameter such that $S$ cannot be covered by $n + 1$ subsets each of diameter strictly less than $\operatorname{diam}(S)$. Erdős [Er44] suspected this. Disproved by Kahn–Kalai [KK93] for $n \geq 2015$. Currently known to be false for $n \geq 64$. A formal proof was formalised by Boris Alexeev using Aristotle. Topics: geometry. Erdős prize: no. Statement is machine-verified in Lean (formal-conjectures). OEIS: possible.

id
vpr_2edea63bf5f31a03
frontier
Erdős problems frontier
kind
finding.add
created
2026-05-30
findings
+1
state
null → 1c1b95fd

accept gate

1 of 4 on record
signature
reviewer:erdos-db-trust · no key registered on this bundle
chain
null → 1c1b95fd
witness
no verifier attachment on record for this target
grade
in state · unreviewed

timeline

  1. 2026-05-30proposeproposed · finding.addagent — machine actor, no signing keyagent:erdos-spine-ingestvpr_2edea63bf5f31a03Candidate claim vc_7649423baf6a25d4 imported from artifact packet cap_61973ee16b553d57
  2. 2026-05-30acceptfinding.assertedreviewer:erdos-db-trustreviewer:erdos-db-trustnull1c1b95fdvev_3614b565604c5a1eCandidate claim vc_7649423baf6a25d4 imported from artifact packet cap_61973ee16b553d57

proposed

reason

Candidate claim vc_7649423baf6a25d4 imported from artifact packet cap_61973ee16b553d57

finding type

open_question

proposed confidence

0.99

confidence basis

agent-imported candidate claim; reviewer acceptance required

provenance

proposed by

agent — machine actor, no signing keyagent:erdos-spine-ingest

actor type

agent

created at

2026-05-30

target type

finding

Erdős Problem #505 has status 'disproved (lean)'. Statement: **Erdős Problem 505** (disproved). Borsuk's conjecture is false for sufficiently large $n$: there exists a dimension $n$ and a bounded set $S \subseteq \mathbb{R}^n$ with positive diameter such that $S$ cannot be covered by $n + 1$ subsets each of diameter strictly less than $\operatorname{diam}(S)$. Erdős [Er44] suspected this. Disproved by Kahn–Kalai [KK93] for $n \geq 2015$. Currently known to be false for $n \geq 64$. A formal proof was formalised by Boris Alexeev using Aristotle. Topics: geometry. Erdős prize: no. Statement is machine-verified in Lean (formal-conjectures). OEIS: possible.

vf_34e3c64c8b737a35

Diff

Read-only frontier; diff not recomputed.

Review chain

  1. 01request

    Change request

    Erdős problems frontier receives a reviewable source, finding, caveat, replication, evaluation, or proof-affecting edit.

    open review
  2. 02packet

    Diff packet

    The packet names affected record objects, evidence, rationale, reviewer-facing fields, and expected proof impact.

    open the campaign
  3. 03checks

    Check output

    Schema, provenance, benchmark, contradiction, and proof checks decide whether the request is ready to read.

    inspect checks
  4. 04review

    Reviewer decision

    A steward accepts, rejects, caveats, revises, or retracts the request under an inspectable identity.

    read queue
  5. 05accepted

    Accepted event

    Only the accepted event mutates frontier state. Atlases, constellations, and search update from that record state.

    inspect events

finding.noted · reviewer:will-blair · 1 day

renders the record as of vev_d199cb2e · 1,338 events · hub

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