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Proof step 7 from proof add-okarray (previous step)

st[r0 -- _length] = intval(i), j < i, is_arrayref(r0, i, st), r0 -- _length ∈ st, 0 ≤ i, okreftype(refval(r0), mkarraytype(ty0), st), r0 ∈ st, 0 ≤ j, 0 < i, ∀ j. ¬ j < 0 ∧ ¬ i ≤ j → oktype(st[r0 -- j '], ty0, addarray(r, ty, vals, st)) ⊦ r0 = jvmref, r = r0, oktype(st[r0 -- j '], ty0, st)

User applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 10, [extquanttermlist: (j)abort:F, discard:T, computed:F]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ i ≤ j → (¬ ¬ j < i ↔ false)], [CSIMPSEQ : ⊦ i < j → (¬ ¬ j ≤ i ↔ false)], [CSIMPSEQ : ⊦ ¬ oktype(val, ty, st0) → ¬ oktype(val, ty, st1)])], [EXTRATERMS : (j)]]