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Proof step 9 from proof div2-nls-02 (previous step)

i + j = i0 * 2 + j0, abs(j0) < 2, i0 < i, i + j < 0, i0 < j, i ≤ j, i0 ≤ 0, j0 ≤ 0 ⊦

User applied rule cut formula

And obtained the following new goals

Proof step 10:
i + j = i0 * 2 + j0, j0 = ~1, i0 < j, i + j < 0, i0 < i, abs(j0) < 2, j0 ≤ 0, i0 ≤ 0, i ≤ j ⊦
Proof step 12:
i + j = i0 * 2 + j0, i0 < j, i + j < 0, i0 < i, abs(j0) < 2, j0 ≤ 0, i0 ≤ 0, i ≤ j ⊦ j0 = ~1

Rule argument

fma: j0 = ~1

Additional information

Used formulas: j0 = ~1