assumption
case ex
L : Language
Δ✝¹ Δ₁ Δ₂ Γ✝ : Sequent L
p✝¹ q✝ r : SyntacticFormula L
C C' : Set (SyntacticFormula L)
Δ✝ Γ : Sequent L
p✝ q : SyntacticFormula L
p : Semiformula L ℕ (Nat.succ 0)
t : Semiterm L ℕ 0
d :  ⊢¹ [→ t].hom p :: Δ✝
Δ : Sequent L
a✝ : CutRestricted C d
⊢ CutRestricted C d
no goals