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Proof step 9 from proof ls (previous step)

∀ i. i + j0 < j0 ↔ i < 0 ⊦ i + j0 < j0 ↔ i < 0

Heuristic cut applied rule cut formula

And obtained the following new goals

Proof step 10:
i < 0, ∀ i. i + j0 < j0 ↔ i < 0 ⊦ i + j0 < j0 ↔ i < 0
Proof step 12:
∀ i. i + j0 < j0 ↔ i < 0 ⊦ i < 0, i + j0 < j0 ↔ i < 0

Rule argument

fma: i < 0

Additional information

Used formulas: i < 0