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Proof step 114 from proof junkrefs-union-disjoint (previous step)

st1 .refs ∩ st .refs = ∅, junkrefs(str, r ' + r0 ' + acc, ty, st1 ∪ st), r ∈ st1, is_valid_ref(str, 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, junkrefs(str, r ' + r0 ' + acc, ty, st1)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[speclemmaarg: ,is_valid_ref(str, r, st) ↔ is_obj(str, r, st) ∨ is_array(str, r, st) ,[st, r, str] → [st1, r, str] ,F ,addfuns , ,is-valid-ref-stronger-def ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st1, r, str)]]