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Proof step 27 from proof max-del1 (previous step)

i0 < max(ints0), i < max(ints0), max(ints0 -1l i) ≤ i0, max(ints0 -1l i) < max(ints0), ∀ i. i < max(ints0) → max(ints0 -1l i) = max(ints0) ⊦ i = i0, ints0 = [], ints0 = i ', i0 = max(ints0)

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

pos: left 5 terms: i

Additional information

Used simplifier rules: forward-lsle: ⊦ i < j ∧ j ≤ j0 → i < j0; (forward) from specification int-abs%forward-lels: ⊦ i ≤ j ∧ j < j0 → i < j0; (forward) from specification int-abs%transitivity: ⊦ i < i0 ∧ i0 < i1 → i < i1; (forward) from specification oelem[intlista]%ls-01: ⊦ i < j → ¬ j < i; from specification int-basic1 Used terms: i