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Theoremresearch

Metric TSP inapproximability

Also called 123/122 TSP hardness, 123/122 bound for metric TSP, Inapproximability of metric TSP, Papadimitriou-Vempala hardness.

Metric TSP cannot be approximated within 123/122 unless P = NP.

Metric TSP cannot be approximated within 123/122 unless P = NP.

About this page

The build computes these levels from the evidence in the repository. Each row says what the next level needs. Read what the levels mean.

LadderLevelWhat the next level needs
Human proofH0 no proof
  • add a proof in proofs/ (06.5)
LeanL0 no Lean part
  • name a Lean module in the lean field (07)
VisualV0 none
  • add viz/scene.ts or a figure (10)
WritingW0 stub
  • Statement
  • one source with a locator