∀ {K : Type u_1} [inst : Field K] {k : Type u_2} [inst_1 : Field k] [inst_2 : Algebra k K] {φ : K →+* ℂ} {σ : Gal(K/k)},
  NumberField.ComplexEmbedding.IsConj φ σ → (σ ≠ 1 ↔ ¬NumberField.ComplexEmbedding.IsReal φ)