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Proof step 2 from proof antisym (previous step)

⊦ i∞ = i∞0, i∞ < i∞0, i∞0 < i∞

User applied rule structural induction

And obtained the following new goals

Proof step 3:
⊦ ⌜i⌝ = i∞0, ⌜i⌝ < i∞0, i∞0 < ⌜i⌝

Rule argument

indvar: i∞

Additional information

Used simplifier rules: neginf-less: ⊦ -∞ < i∞ ↔ i∞ ≠ -∞;%not-inf-less: ⊦ ¬ ∞ < i∞;%less-inf: ⊦ i∞ < ∞ ↔ i∞ ≠ ∞;%intinf freely generated by -∞, ∞, ⌜ ⌝;;