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Proof step 28 from proof validrefs-del-junkrefs (previous step)

st[r0 -- i '] = refval(r), 0 < st[r0 -- _length] .intval, 0 ≤ i, junkrefs(str, r ', st[r0 -- _type] .type .type, st -- r), i < st[r0 -- _length] .intval, is_array(str, r0, st), st[r0 -- _type] .type ≤ ty ⊦ r = r0, r0 = jvmref, r = jvmref, is_valid_ref(str, r, st) ∧ st[r -- _type] .type ≤ st[r0 -- _type] .type .type, ∃ 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 ≤ st[r0 -- _type] .type .type ∨ junkref(str, st[r0 -- i0 '] .refval, st))

User applied rule exists right

And closed the goal!

Rule argument

[EXRARG : pos: right 5, [extquanttermlist: (i)abort:F, discard:T, computed:T]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ i ≤ j → (¬ ¬ j < i ↔ false)], [CSIMPSEQ : ⊦ i < j → (¬ ¬ j ≤ i ↔ false)], [CSIMPSEQ : ⊦ is_referencevalue(refval(r))], [CSIMPSEQ : ⊦ refval(r) .refval = r], [CSIMPSEQ : ⊦ ¬ is_valid_ref(str, r, st) ∧ r ≠ jvmref → junkref(str, r, st)])], [EXTRATERMS : (i)]]