let Δ := {f : Form | ¬(formalApplication t (▲{f}) ⊆ p) }
t u : Th
p : Pr
h₁ : formalApplicationFunction t u ≤ ↑p
⊢ ∃ r, u ≤ ↑r ∧ formalApplication ↑t ↑↑r ⊆ ↑↑p
t u : Th
p : Pr
h₁ : formalApplicationFunction t u ≤ ↑p
Δ : Set Form := { f | ¬formalApplication (↑t) (▲{f}) ⊆ ↑↑p }
⊢ ∃ r, u ≤ ↑r ∧ formalApplication ↑t ↑↑r ⊆ ↑↑p