| ≡mod(i ^ i0, i, j), j0 | abs(i ^ i0 - i), prime(j), prime(j0), 0 < i, 0 ≤ i0 ⊦ j = j0, j * j0 | i ^ i0 - i |
prime(j), prime(j0), 0 < i, 0 ≤ i0, ≡mod(i ^ i0, i, j), j0 | i ^ i0 - i ⊦ j = j0, j * j0 | i ^ i0 - i
Used simplifier rules: div-abs-02: ⊦ i | abs(j) ↔ i | j; from specification int-gcd