new H ∧ D → (C ∧ I → (D ∧ B → (((D → H) → B) → ((F → G ∧ H) → ((A → E) → ((B ∨ E) ∧ (A ∧ (D ∧ D)) → (G → B) ∨ E))))))
intro
cases 0
intro
cases 3
intro
cases 6
intro
intro
intro
cases 0
cases 3
cases 6
intro
cases 18
cases 0
cases 3
cases 6
cases 18
cases 20
cases 28
cases 30
cases 32
left
intro
cases 0
cases 3
cases 6
cases 18
cases 20
cases 28
cases 30
cases 32
cases 45
cases 47
cases 49
cases 55
exact 8