Proof of `Exact images mixing independent injective frames` (4th statement)
groundedproofs/Lax342547Proofs/ProductImages.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 combined plus-frame marginal is uniform independently at every raw draw. The joint nominal-image estimate therefore applies to the actual raw law, including directions that mix both endpoints of a unit.