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Proof step 8 from proof junkrefs-put-badclassfield (previous step)

st[r -- _type] .type = mkclasstype(class), junkrefs(str, r ' + acc, mkclasstype(class0), st[r -- fs ', val]), is_obj(str, r, st), class ≤ class0, ∀ str, ty, st, fs, r0, val. ¬ junkrefs(str, acc, ty, st) ∧ fs ' ≠ _type ∧ is_classtype(st[r0 -- _type] .type) ∧ ¬ fs ' ∈ instfields(st[r0 -- _type] .type .class) → ¬ junkrefs(str, acc, ty, st[r0 -- fs ', val]) ⊦ r = jvmref, fs ' = _type, is_obj(str, r, st[r -- fs ', val]), fs ' ∈ instfields(class), junkrefs(str, r ' + acc, mkclasstype(class0), st)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[speclemmaarg: , is_obj(str, r, st) ∧ fs ' ≠ _type ∧ ¬ fs ' ∈ instfields(st[r -- _type] .type .class) → is_obj(str, r, st[r -- fs ', val]) ,[val, fs, st, r, str] → [val, fs, st, r, str] ,F ,addfuns , ,is_obj-put-badfield ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ mkclasstype(class) .class = class])], [EXTRATERMS : (val, fs, st, r, str)]]