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Proof step 15 from proof mult-ass (previous step)

j0 ≠ 0 ∧ j1 ≠ 0, 0 < j1, 0 < j0, 0 < j ⊦ j = 0, j0 = 0, rational(i * i0, j * j0) * rational(i1, j1) = rational(i, j) * rational(i0 * i1, j0 * j1)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information