Proof of `Random sharp-block forms and their alternating parity` (5th statement)
groundedproofs/Lax342547Proofs/SharpMixerLaw.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
All tester and sharp coordinates vanish on a free Z-direction input. Consequently an optional self-Gram evaluation contributes zero to the free-direction block used to test a nonempty mixer parity.