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Proof step 8 from proof hasSharing-dups-array (previous step)

st[r -- i '] = refval(r0), st[r -- j '] = refval(r0), 0 < st[r -- _length] .intval, 0 ≤ j, 0 ≤ i, is_arraytype(st[r -- _type] .type), j < st[r -- _length] .intval, i < st[r -- _length] .intval ⊦ r = jvmref, i = j, r0 = jvmref, ∃ sks1, sks2. fits(r, sks1, st) ∧ fits(r, sks2, st) ∧ sks1 ≠ sks2 ∧ sks1 ≠ [] ∧ sks2 ≠ [] ∧ st[r -- sks1] .refval ≠ jvmref ∧ st[r -- sks1] = st[r -- sks2]

User applied rule exists right

And obtained the following new goals

Proof step 7:
st[r -- i '] = refval(r0), st[r -- j '] = refval(r0), 0 < st[r -- _length] .intval, 0 ≤ j, 0 ≤ i, is_arraytype(st[r -- _type] .type), j < st[r -- _length] .intval, i < st[r -- _length] .intval ⊦ r = jvmref, i = j, r0 = jvmref, fits(r, i ' ', st) ∧ fits(r, j ' ', st) ∧ i ' ' ≠ j ' ' ∧ i ' ' ≠ [] ∧ j ' ' ≠ [] ∧ st[r -- i ' '] .refval ≠ jvmref ∧ st[r -- i ' '] = st[r -- j ' ']

Rule argument

[EXRARG : pos: right 4, [extquanttermlist: (i ' ', j ' ') abort:F , discard:T , computed:F ]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (i ' ', j ' ')]]