Proof of `Asteroidal cycle triples obstruct induced minors` (1st statement)
groundedproofs/Lax762056Proofs/Obstruction.lean · lax-762056
What this proof establishes
no assumptions
Assuming the claims on the left, the claim on the right holds — checked by the archive's pipeline. Proof code is not displayed here.
In the paper
- page 5 of this submission's paper
Description
Each cycle's branch sets contain opposite sides of a column. The three columns are distinct. The middle column is contained in the middle cycle's closed neighborhood and separates the other two cycles, contradicting their avoiding path.