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Proof step 42 from proof junkref-update-equiv (previous step)

st[r -- i '] = refval(r1), is_array(str, r, st), 0 < st[r -- _length] .intval, 0 ≤ i, junkrefs(str, r1 ' + acc, st[r -- _type] .type .type, st), i < st[r -- _length] .intval, is_valid_ref(str, r0, st), validFields(r0, fis, st), st[r1 -- _type] .type ≤ st[r -- _type] .type .type, ∀ r0, fis, st, str, r. validFields(r0, fis, st) ∧ is_valid_ref(str, r0, st) ∧ junkrefs(str, r ' + acc, st[r -- _type] .type, st) → junkref(str, r, update(r0, fis, st)) ∨ path∃(str, r, r0, st) ∨ _type ∈ fis ⊦ r = jvmref, r = r0, r1 = jvmref, _type ∈ fis, path∃(str, r, r0, st), junkref(str, r1, update(r0, fis, st))

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[crewrite-arg: pathex-array, F, [st, r0, r, str] → [st, r0, r, str]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, r0, r, str)]]