Lax Lean Archive

Proof of `Parity of the Euler characteristic in odd dimension, and integrality for surfaces` (2nd statement)

groundedproofs/Lax894236Proofs/Parity.lean · lax-894236

What this proof establishes

no assumptions

thm✓Lax894236.Parity (2nd statement)

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

Description

Reduce modulo 33 and check the three residues.