File size: 273 Bytes
74649a8 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | new F ∧ G → (C ∧ A → ((B → E) → (E → ((A ∨ B → C) → ((C → D) → (C → (D ∨ G ∧ D) ∧ (D ∧ G))))))) intro cases 0 intro cases 3 intro intro intro intro intro cases 0 cases 3 constructor left apply 9 exact 4 constructor apply 9 exact 4 exact 2 |