Lax Lean Archive

Proof of `Induced grid exclusion in row and column graphs`

groundedproofs/Lax762056Proofs/GridExclusion.lean · lax-762056

What this proof establishes

lem✓Lax762056.ColumnGridExclusion

Assuming the claims on the left, the claim on the right holds — checked by the archive's pipeline. Proof code is not displayed here.

Read the Lean proof on GitHub

In the paper

  • page 4 of this submission's paper

Description

Apply the general obstruction to the explicit triple of cycles in the grid.