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Proof step 12 from proof div-mult-01 (previous step)

i0 < 0, 0 ≤ i ⊦ (i * i0) / (j * i0) = i / j, i0 = 0, j = 0

User applied rule cut formula

And obtained the following new goals

Proof step 13:
i0 < 0, j < 0, 0 ≤ i ⊦ (i * i0) / (j * i0) = i / j, i0 = 0, j = 0
Proof step 16:
i0 < 0, 0 ≤ i ⊦ (i * i0) / (j * i0) = i / j, i0 = 0, j = 0, j < 0

Rule argument

fma: j < 0

Additional information

Used formulas: j < 0