Proof of `Finite product sampling and coordinate marginals` (2nd statement)
groundedproofs/Lax263307Proofs/FiniteProductSampling.lean · lax-263307
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
Expand the sum over all assignments into a product of coordinate sums. Every coordinate has mass one.