Proof of `Fourier shifts, odd tables and disagreement indicators` (2nd statement)
groundedproofs/Lax323828Proofs/FourierIdentities.lean · lax-323828
What this proof establishes
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
Use linearity, the coefficient of the constant function, and the singleton character shift.