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Proof step 15 from proof unchNorec-sym (previous step)

st0[r -- _type] = st[r -- _type], st0[r -- _length] = st[r -- _length], is_arraytype(st[r -- _type] .type), i < st[r -- _length] .intval, 0 ≤ i, 0 < st[r -- _length] .intval, ∀ i. ¬ i < 0 ∧ ¬ st[r -- _length] .intval ≤ i → st0[r -- i '] = st[r -- i '] ⊦ r = jvmref, st[r -- i '] = st0[r -- i ']

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 7, [QUANTTERMLIST : (i)]]

Additional information

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