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Proof step 6 from proof isarray-abstract (previous step)

st[r -- _type] = typeval(mkarraytype(abstract_type)), st[r -- _length] = intval(i), 0 < i, is_arrayref(r, i, st), r ∈ st, r -- _type ∈ st, r -- _length ∈ st, ∀ j. j < 0 ∨ i ≤ j ⊦ i = 0, r = jvmref

User applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 8, [extquanttermlist: (0)abort:F, discard:T, computed:F]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ i ≠ j → (i ≤ j ↔ i < j)], [CSIMPSEQ : ⊦ i < j → ¬ j < i])], [EXTRATERMS : (0)]]