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Proof step 11 from proof negate (previous step)

0 < j ⊦ rational(i, j).num + (0r - rational(i, j)).num = 0 ∧ rational(i, j).denom = (0r - rational(i, j)).denom

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

name: sub-def rotate: F subst: [rj, ri] → [rational(i, j), 0r]

Additional information

Used terms: rational(i, j), 0r