Proof of `Grids are planar`
groundedproofs/Lax68Proofs/Grids.lean · lax-68
What this proof establishes
no assumptions
thm✓
Lax68.GridPlanarAssuming the claims on the left, the claim on the right holds — checked by the archive's pipeline. Proof code is not displayed here.
Description
Place grid vertices at integer row-column coordinates. Grid edges become unit axis-aligned segments, which meet only at common endpoints.