Proof of `The affine minus-column law at a fixed plus frame` (1st statement)
groundedproofs/Lax342547Proofs/ConditionalMinus.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
One dimension beyond twice the full-frame size makes the failure bound at most one half. Conditioning the affine column product on full minus injectivity therefore increases any event probability by at most two.