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Proof step 61 from proof junkrefs-union-disjoint (previous step)

st1 .refs ∩ st .refs = ∅, is_obj(str, r, st1), junkrefs(str, r ' + r0 ' + acc, ty, st1 ∪ st), r ∈ st1, st1[r -- _type] .type ≤ ty, ∀ st1, st, r, str, ty. st1 .refs ∩ st .refs = ∅ ∧ r ∈ st1 ∧ junkrefs(str, r ' + acc, ty, st1 ∪ st) → junkrefs(str, r ' + acc, ty, st1) ⊦ r = jvmref, ∃ fs. fs ' ∈ instfields(st1[r -- _type] .type .class) ∧ is_referencevalue(st1[r -- fs ']) ∧ r0 = st1[r -- fs '] .refval ∧ junkrefs(str, st1[r -- fs '] .refval ' + acc, fs .type, st1)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[crewrite-arg: junkrefs-class , F , [st, ty, refs, r, str] → [st1 ∪ st, ty, r0 ' + acc, r, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st1 ∪ st, ty, r0 ' + acc, r, str)]]