| new (D ∨ E → D) → (B ∧ C → (A ∧ E → (D → (A → (C ∧ F → B ∧ ((B ∧ D) ∧ (F → A))))))) | |
| intro | |
| intro | |
| cases 1 | |
| intro | |
| cases 4 | |
| intro | |
| intro | |
| intro | |
| cases 9 | |
| cases 1 | |
| cases 4 | |
| cases 9 | |
| constructor | |
| exact 2 | |
| constructor | |
| constructor | |
| exact 2 | |
| exact 7 | |
| intro | |
| cases 1 | |
| cases 4 | |
| cases 9 | |
| exact 5 | |