Proof of `Rank-one derivative tests are scalar pairings of residual contractions` (4th statement)
groundedproofs/Lax342547Proofs/DerivativeContractions.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
Swap the finite matrix indices and use symmetry of the channel dot product. No symmetry of the input matrix is assumed.