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Proof step 8 from proof negate-01 (previous step)

⊦ rational(~ i, 0) = ~ rational(i, 1)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 9:
⊦ rational(i, 0) = rational(i, 1)

Rule argument

name: zero-denom rotate: F subst: [i] → [~ i]

Additional information

Used simplifier rules: negate: ⊦ 0 < j → rational(~ i, j) = ~ rational(i, j); Used terms: ~ i