Theorem: LO.FirstOrder.Semiformula.eval_nrel₀ (Logic/FirstOrder/Basic/Semantics/Semantics.lean)

State before:
n₂ : ℕ
L : Language
μ : Type v
μ₁ : Type v₁
μ₂ : Type v₂
M : Type w
s : Structure L M
n : ℕ
e : Fin n → M
e₂ : Fin n₂ → M
ε : μ → M
ε₂ : μ₂ → M
r : L.Rel 0
⊢ (Eval s e ε) (nrel r ![]) ↔ ¬Structure.rel r ![]
Tactic:
simp [eval_nrel, Matrix.empty_eq]
State after:
no goals