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Proof step 1 from proof less-reflex (conclusion)

⊦ i∞ < ⌜i∞.i⌝ → i∞ = ∞ ∨ i∞ = -∞

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: irreflex: ⊦ ¬ i∞ < i∞;%notinf-eq: ⊦ i∞ ≠ ∞ ∧ i∞ ≠ -∞ → ⌜i∞.i⌝ = i∞; from specification int-inf-basic