exact ⟨nrel r v, by simp, h⟩
case neg
L : Language
Δ : List (SyntacticFormula L)
k✝ : ℕ
r : L.Rel k✝
v : Fin k✝ → Semiterm L ℕ 0
M : Type u_1
s : Structure L M
ε : ℕ → M
h : ¬Structure.rel r (Semiterm.valm M ![] ε ∘ v)
⊢ ∃ p ∈ rel r v :: nrel r v :: Δ, (Evalfm M ε) p
no goals