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Proof step 3 from proof modzero-08 (previous step)

i * j + j0 = 0, abs(j0) < j, i * j + j0 ≤ 0, i * j + j0 < i, 0 < i ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
i * j + j0 = 0, 0 < i, abs(j0) < j ⊦

Rule argument

Additional information

Used simplifier rules: forward-le-01: ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward) from specification int-abs