Proof of `Witness atoms and their numerical tester records` (3rd statement)
groundedproofs/Lax342547Proofs/WitnessAtoms.lean · lax-342547
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.
Description
The cross tester terms occur with their transposes. They cancel on the diagonal in characteristic two, and each binary role bit squares to itself.