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Proof step 10 from proof add-def-03 (previous step)

j1 < 0 ⊦ j1 = 0, j2 = 0, rational(i2, j2) + rational(~ i1, ~ j1) = rational(i1 * j2 + j1 * i2, j1 * j2)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

name: add-def-02 rotate: F subst: [j2, i2, j1, i1] → [~ j1, ~ i1, j2, i2]

Additional information

Used terms: ~ j1, ~ i1, j2, i2