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Proof step 1 from proof modeqp-copied (conclusion)

i * j + j0 = i0 * j + j1, 0 ≤ j0, j0 < j, 0 ≤ j1, j1 < j ⊦ i = i0 ∧ j0 = j1

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
i * j + j0 = i0 * j + j1, j0 < j, j1 < j, 0 ≤ j0, 0 ≤ j1, 0 < j ⊦ i = i0 ∧ j0 = j1

Rule argument

Additional information

Used simplifier rules: forward-le-01: ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward) from specification int-abs%forward-le-05: ⊦ i < j ∧ 0 ≤ i → 0 < j; (forward) from specification int-abs