`BookProof.FriedrichsSquare.exists_mem_factorRel_add` (A : D →ₗ[ℂ] F) (h : F) : ∃ p : F × F, p ∈ factorRel A ∧ p.1 + p.2 = h

Initializing...

`BookProof.FriedrichsSquare.exists_mem_factorRel_add` (A : D →ₗ[ℂ] F) (h : F) : ∃ p : F × F, p ∈ factorRel A ∧ p.1 + p.2 = h · Prove2Me