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Proof step 8 from proof ls-02 (previous step)

i / i0 < j / i0, 0 < i0, j ≤ i, 0 ≤ i ⊦

User applied rule cut formula

And obtained the following new goals

Proof step 9:
0 < i0, i / i0 < j / i0, j < 0, 0 ≤ i, j ≤ i ⊦
Proof step 12:
0 < i0, i / i0 < j / i0, 0 ≤ i, j ≤ i ⊦ j < 0

Rule argument

fma: j < 0

Additional information

Used formulas: j < 0