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Proof step 1 from proof canon-any (conclusion)

⊦ 0 < j → rational(i, j) = rational(i / gcd(i, j), j / gcd(i, j))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ 0 ≤ i ∧ 0 < j → rational(i, j) = rational(i / gcd(i, j), j / gcd(i, j))
Proof step 3:
¬(0 ≤ i ∧ 0 < j) ⊦ 0 < j → rational(i, j) = rational(i / gcd(i, j), j / gcd(i, j))

Rule argument

name: canon-pos rotate: F subst: [j, i] → [j, i]

Additional information

Used terms: j, i