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Proof step 17 from proof div2-nls (previous step)

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

User applied rule cut formula

And obtained the following new goals

Proof step 18:
i + j = i0 * 2 + j0, j0 = 1, i < i0, j < i0, j0 < 2, 0 ≤ j0, 0 ≤ i0, 0 ≤ i + j, i ≤ j ⊦
Proof step 20:
i + j = i0 * 2 + j0, i < i0, j < i0, j0 < 2, 0 ≤ j0, 0 ≤ i0, 0 ≤ i + j, i ≤ j ⊦ j0 = 1

Rule argument

fma: j0 = 1

Additional information

Used formulas: j0 = 1