`BookProof.DirectSumEdge.quadForm_dsOp_eq_sum` (H : ∀ i, D i →ₗ[ℂ] G i) (x : dsCore D) : quadForm (dsOp H) x = ∑ i ∈ supportFinset x, quadForm (H i) ⟨((x : lp G 2) : ∀ i, G i) i, x

Initializing...

`BookProof.DirectSumEdge.quadForm_dsOp_eq_sum` (H : ∀ i, D i →ₗ[ℂ] G i) (x : dsCore D) : quadForm (dsOp H) x = ∑ i ∈ supportFinset x, quadForm (H i) ⟨((x : lp G 2) : ∀ i, G i) i, x · Prove2Me