| gcd(i, j) = 1, i * i0 = j ^ i1 * j, 0 < i, 1 < i, 0 ≤ i1, i | j ^ i1, ∀ j1, i, i0, j. i→n(j1) < i→n(i1 + 1) → i * i0 = j ^ j1 ∧ gcd(i, j) = 1 ∧ 0 < i ∧ 1 < i ∧ 0 < j1 → j = 0 ⊦ j = 0 |
⊦ i | j ↔ (∃ i0. i * i0 = j)
gcd(i, j) = 1, i * i0 = j ^ i1 * j, 0 < i, 1 < i, 0 ≤ i1, ∃ i0. i * i0 = j ^ i1, ∀ j1, i, i0, j. i→n(j1) < i→n(i1 + 1) → i * i0 = j ^ j1 ∧ gcd(i, j) = 1 ∧ 0 < i ∧ 1 < i ∧ 0 < j1 → j = 0 ⊦ j = 0
Used terms: j ^ i1, i