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Proof step 7 from proof nls (previous step)

i + i0 < j + j0, j < i, j0 < i0 ⊦

User applied rule insert lemma

And obtained the following new goals

Rule argument

spec: <toplevel> name: pls seq: i < j, i0 < j0 ⊦ i + i0 < j + j0 subst: [i, j, i0, j0] → [j0, i0, j, i]

Additional information

Used simplifier rules: add-c: ⊦ i + j = j + i;% ⊦ i < j → ¬ j < i; (s) Used terms: j0, i0, j, i