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Proof step 2 from proof gcd-num-one (previous step)

⊦ rj.num = 0, gcd(rj.num, rj.denom) = 1

User applied rule structural induction

And obtained the following new goals

Proof step 3:
⊦ rational(i, i0).num = 0, gcd(rational(i, i0).num, rational(i, i0).denom) = 1

Rule argument

indvar: rj

Additional information

Used simplifier rules: gen: ⊦ ;