new (B ∨ (E → C)) ∧ B → (A → ((C → D) → ((F → E ∧ A) → (A ∧ (A ∧ G) → ((A → E) → (B → E))))))
intro
cases 0
intro
intro
intro
intro
cases 6
intro
intro
cases 0
cases 6
cases 8
cases 14
apply 9
exact 3