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Proof step 3 from proof equality-02 (previous step)

i * j0 = i0 * j, 0 < j, 0 < j0 ⊦ 0 < i ∧ 0 < i0, rational(i, j) = rational(i0, j0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ⊦ i < j ∧ 0 ≤ i → 0 < j; (forward)% ⊦ ¬ i < j ↔ j ≤ i;