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Proof step 9 from proof rational-add-same (previous step)

⊦ rational(i1 + i, 1) = rational(i + i1, 0)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

name: zero-denom rotate: F subst: [i] → [i + i1]

Additional information

Used simplifier rules: ⊦ i + j = j + i; Used terms: i + i1