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Proof step 9 from proof multi-isarrayref-01 (previous step)

# refs = i→n(countrefs(i ' + ints0)), 0 < i, 0 ≤ j, j < i0, j < i, 0 ≤ i0, posints(ints0), 0 ≤ i, 0 < i0, i ≤ i0, ∀ j0. ¬ j0 < 0 ∧ ¬ i ≤ j0 → r -- j0 ' ∈ st ⊦ r -- j ' ∈ st, 0 ∈ (i0 ' + ints0) .butlast, r ∈ refs

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 11, [QUANTTERMLIST : (j)]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ i ≤ j → (¬ ¬ j < i ↔ false)], [CSIMPSEQ : ⊦ i < j → (¬ ¬ j ≤ i ↔ false)])], [EXTRATERMS : (j)]]