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Proof step 4 from proof modneqp (previous step)

j1 < j, j0 < j, i0 ≤ j, i < i1, 0 ≤ j1, 0 ≤ j0, 0 < j, 0 ≤ i0, 0 ≤ j, 0 ≤ i, 0 < i1 ⊦ i * i0 + j0 < i1 * j + j1

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
j1 < j, j0 < j, i0 ≤ j, i < i1, 0 ≤ j1, 0 ≤ j0, 0 < j, 0 ≤ i0, 0 ≤ j, 0 ≤ i, 0 < i1, i1 * j + j1 ≤ i * i0 + j0 ⊦

Rule argument

Additional information

Used simplifier rules: lels: ⊦ ¬ i < j ↔ j ≤ i; from specification int-abs