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Proof step 2 from proof div2-nls-01 (previous step)

i < (i + j) / 2, i < j, j < (i + j) / 2, i + 1 < (i + j) / 2 ⊦

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ i ≤ j → ¬ j < (i + j) / 2

Rule argument

spec: int-div inst: name: div2-nls seq: ⊦ i ≤ j → ¬ j < (i + j) / 2 subst: [i, j] → [i, j] flags: rewrite, current

Additional information

Used simplifier rules: lels-01: ⊦ ¬ i ≤ j ↔ j < i; from specification int-abs%ls-01: ⊦ i < j → ¬ j < i; from specification int-basic1 Used terms: i, j