`BookProof.QgCouplingDGammaSum.quadForm_dGammaOp_finsetSum` (s : Finset ι) (cols : ι → ℕ → (ℕ →₀ ℂ)) (x : lpFiniteModes Conf) : quadForm (dGammaOp (fun k => ∑ i ∈ s, cols i k)) x =

Initializing...

`BookProof.QgCouplingDGammaSum.quadForm_dGammaOp_finsetSum` (s : Finset ι) (cols : ι → ℕ → (ℕ →₀ ℂ)) (x : lpFiniteModes Conf) : quadForm (dGammaOp (fun k => ∑ i ∈ s, cols i k)) x = · Prove2Me