. existsi (CanonicalModel L).Valuation;
  exact iff_valid_on_canonicalModel_deducible.not.mpr h;
case h.right
α : Type u_1
inst✝⁴ : DecidableEq α
inst✝³ : Inhabited α
L : DeductionParameter α
inst✝² : L.Normal
p : Formula α
inst✝¹ : Consistent L
inst✝ : Canonical L
h : ¬L ⊢! p
⊢ ∃ V, ¬Kripke.ValidOnModel { Frame := CanonicalFrame L, Valuation := V } p
no goals