exact rfl
case impl
t : Th
a✝¹ a✝ : Form
h₁ : a✝¹⊃a✝ ∈ ⋂₀ { p | isPrimeTheory p ∧ ↑t ≤ p ∧ formalTheory p }
h₂ : ¬a✝¹⊃a✝ ∈ ↑t
l₁ : ∀ (g : Form), g ∈ generatedDisjunctions (a✝¹⊃a✝) → {g}⊢a✝¹⊃a✝
l₂ : ↑t ∩ generatedDisjunctions (a✝¹⊃a✝) = ∅
l₃ : isDisjunctionClosed (generatedDisjunctions (a✝¹⊃a✝))
⊢ a✝¹⊃a✝ ∈ generatedDisjunctions (a✝¹⊃a✝)
no goals