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Proof step 6 from proof exactarray-in (previous step)

st[r -- _type] = typeval(mkarraytype(ty)), r ∈ st, r -- _length ∈ st, r -- _type ∈ st, 0 < st[r -- _length] .intval, 0 ≤ i, i < st[r -- _length] .intval, ∀ j. ¬ j < 0 ∧ ¬ st[r -- _length] .intval ≤ j → r -- j ' ∈ st ⊦ r = jvmref, r -- i ' ∈ st

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 8, [QUANTTERMLIST : (i)]]

Additional information

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