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Proof step 9 from proof square-ls-02 (previous step)

i < j, 0 ≤ i, 0 ≤ j ⊦ i * i + i < j * j + j

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 10:
i < j, 0 < j, 0 ≤ j, 0 ≤ i, j * j + j ≤ i * i + i ⊦

Rule argument

Additional information

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