| import Mathlib | |
| namespace OAI | |
| namespace InternalCatalan | |
| theorem catalan_irrational : | |
| Irrational (∑' j : ℕ, (-1 : ℝ) ^ j / ((2 * j + 1 : ℕ) : ℝ) ^ 2) := by | |
| sorry | |
| end InternalCatalan | |
| end OAI | |
| import Mathlib | |
| namespace OAI | |
| namespace InternalCatalan | |
| theorem catalan_irrational : | |
| Irrational (∑' j : ℕ, (-1 : ℝ) ^ j / ((2 * j + 1 : ℕ) : ℝ) ^ 2) := by | |
| sorry | |
| end InternalCatalan | |
| end OAI | |