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Proof step 2 from proof zero-gr-add-02 (previous step)

0 < i1 * j + i0, j < 0, 0 ≤ i0, i0 ≤ i1 ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
j < 0, 0 < i1 * j + i0, i0 ≤ i1, 0 ≤ i1, 0 ≤ i0 ⊦

Rule argument

Additional information

Used simplifier rules: ⊦ i < 0 ∧ 0 ≤ j → i < j; (s)%forward-le-01: ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward) from specification int-abs%forward-le-02: ⊦ j < i ∧ i ≤ 0 → j < 0; (forward) from specification int-abs%forward-lsle: ⊦ i < j ∧ j ≤ j0 → i < j0; (forward) from specification int-abs%forward-le-05: ⊦ i < j ∧ 0 ≤ i → 0 < j; (forward) from specification int-abs