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Proof step 1 from proof make (conclusion)

⊦ rational(ri.num, ri.denom) = ri

User applied rule structural induction

And obtained the following new goals

Proof step 2:
⊦ rational(rational(i, i0).num, rational(i, i0).denom) = rational(i, i0)

Rule argument

indvar: ri

Additional information

Used simplifier rules: gen: ⊦ ;