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Proof step 20 from proof at-put-prim (previous step)

st[r0 -- i '] = refval(r1), st[r0 -- _type] .type = mkarraytype(ty), 0 ≤ i, 0 < st[r0 -- _length] .intval, i < st[r0 -- _length] .intval, junkref(str, r1, st), is_referencevalue(st[r1 -- sks0]), fits(r1, sks0, st), is_array(str, r0, st), r0 ≠ r ∨ i ' ≠ sk ⊦ (st[r -- sk, val][r1 -- sks0]) = st[r1 -- sks0], r0 = jvmref, sks0 = [], is_referencevalue(st[r -- sk]), junkref(str, r, st), ∃ i0. ¬ i0 < 0 ∧ ¬ st[r0 -- _length] .intval ≤ i0 ∧ is_referencevalue(st[r0 -- i0 ']) ∧ st[r0 -- i0 '] .refval ≠ jvmref ∧ (¬ st[st[r0 -- i0 '] .refval -- _type] .type ≤ ty ∨ junkref(str, st[r0 -- i0 '] .refval, st))

User applied rule exists right

And closed the goal!

Rule argument

[EXRARG : pos: right 6, [extquanttermlist: (i)abort:F, discard:T, computed:T]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : int-abs, , lels-04, ⊦ i ≤ j → (¬ ¬ j < i ↔ false)], [CSIMPNAMEDSEQ : int-abs, , lels-03, ⊦ i < j → (¬ ¬ j ≤ i ↔ false)], [CSIMPNAMEDSEQ : javavalue, , test-19, ⊦ is_referencevalue(refval(r))], [CSIMPNAMEDSEQ : javavalue, , sel-09, ⊦ refval(r) .refval = r], [CSIMPNAMEDSEQ : junkrefs, , junkref-null, ⊦ ¬ junkref(str, jvmref, st)])], [EXTRATERMS : (i)]]