| 0 < j, prime(i), i | i0 ^ (j - 1), ∀ j0, i, i0. i→n(j0) < i→n(j) → prime(i) ∧ 0 < j0 → (i | i0 ^ j0 ↔ i | i0) ⊦ i | i0 |
j = i1 + 1, 0 < j, prime(i), i | i0 ^ i1, ∀ j0, i, i0. i→n(j0) < i→n(j) → prime(i) ∧ 0 < j0 → (i | i0 ^ j0 ↔ i | i0) ⊦ i | i0
Used simplifier rules: ⊦ i0 = i - j ↔ i = i0 + j; (elim) Used terms: j, 1, i1