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Proof step 4 from proof cong-mult-rew (previous step)

≡mod(i0, i2, j) ⊦ j | abs(i * i0 - i1) ↔ ≡mod(i * i2, i1, j)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
≡mod(i0, i2, j) ⊦ j | i * i0 - i1 ↔ ≡mod(i * i2, i1, j)

Rule argument

Additional information

Used simplifier rules: div-abs-02: ⊦ i | abs(j) ↔ i | j; from specification int-gcd