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Proof step 8 from proof div-est-num (previous step)

i0 = i1 * j + j1, i0 < 0, i < 0, i1 < i / j, 0 < j, i1 < j0, abs(j1) < j, j0 ≤ i / j, i ≤ i0, j1 ≤ 0, i1 ≤ 0 ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
abs(j1) < j, i1 < j0, 0 < j, i < 0, i1 < j, j1 < j, i1 < i / j, i1 * j + j1 < 0, i ≤ i1 * j + j1, j0 ≤ i / j, i1 ≤ 0, j1 ≤ 0 ⊦

Rule argument

Additional information

Used simplifier rules: forward-le-04: ⊦ j ≤ i ∧ i ≤ 0 → j ≤ 0; (forward) from specification int-abs%forward-lels: ⊦ i ≤ j ∧ j < j0 → i < j0; (forward) from specification int-abs%forward-lsle: ⊦ i < j ∧ j ≤ j0 → i < j0; (forward) from specification int-abs%forward-le-02: ⊦ j < i ∧ i ≤ 0 → j < 0; (forward) from specification int-abs