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Proof step 10 from proof elim-sub (previous step)

0 < j, 0 < j0, 0 < j1 ⊦ rational(i0, j0) = rational(i, j) - rational(i1, j1) ↔ rational(i, j) = rational(i0, j0) + rational(i1, j1)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

name: sub-def-01 rotate: F subst: [j2, i2, j1, i1] → [j1, i1, j, i]

Additional information

Used simplifier rules: ⊦ ¬ i < j ↔ j ≤ i;% ⊦ i < j → (¬ ¬ j ≤ i ↔ false); Used terms: j1, i1, j, i