File size: 203 Bytes
5e06520 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | new A → (B ∧ A → ((D → A) → ((A → B) → ((F → D) → (C ∧ A → (D → D)))))) intro intro cases 1 intro intro intro cases 1 intro cases 9 cases 1 cases 9 intro cases 1 cases 9 exact 16 |