⊦ prime(i) ∧ ¬ i | j → gcd(i, j) = 1
¬(prime(i) ∧ ¬ i | i0 ^ i1), i * j = i0 ^ i1 * i0, prime(i), 0 ≤ i1 ⊦ gcd(i, i0 ^ i1) = 1, i | i0
Used terms: i0 ^ i1, i