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Proof step 8 from proof junkref-put-ba (previous step)

st[r0 -- _type] = typeval(mkarraytype(byte_type)), is_array(r0, st), junkrefs(str, r ' + refs0, st[r -- _type] .type, st[r1 -- mkfs(class, mkarraytype(byte_type), fieldvar) ', refval(r0)]) ⊦ junkref(str, r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ junkref(str, r, st) ↔ (∃ refs. refs ≠ [] ∧ refs .first = r ∧ junkrefs(str, refs, st[r -- _type] .type, st))
Proof step 7:
st[r0 -- _type] = typeval(mkarraytype(byte_type)), is_array(r0, st), junkrefs(str, r ' + refs0, st[r -- _type] .type, st[r1 -- mkfs(class, mkarraytype(byte_type), fieldvar) ', refval(r0)]) ⊦ ∃ refs. refs ≠ [] ∧ refs .first = r ∧ junkrefs(str, refs, st[r -- _type] .type, st)

Rule argument

[crewrite-arg: junkref-def, F, [st, r, str] → [st, r, str]]

Additional information

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