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Proof step 7 from proof fermat-2 (previous step)

i0 * i * i ^ (j - 1) = i ^ (j - 1) * i * i0, ≡mod(i0 * i * i ^ (j - 1), 1, j), gcd(j, i) = 1, prime(j), ≡mod(i * i0, 1, j) ⊦ ≡mod(i ^ (j - 1), 1, j)

User applied rule insert equation

And obtained the following new goals

Proof step 8:
≡mod(i ^ (j - 1) * i * i0, 1, j), gcd(j, i) = 1, prime(j), ≡mod(i * i0, 1, j) ⊦ ≡mod(i ^ (j - 1), 1, j)

Rule argument

pos: left 1 flags: discard

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