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Proof step 7 from proof sharing-pathex-field-self (previous step)

st[r0 -- fs '] = refval(r0), is_valid_ref(`docs2store', r0, st), fs ' ∈ instfields(st[r0 -- _type] .type .class), is_classtype(st[r0 -- _type] .type) ⊦ r0 = jvmref, refval(r0) = st[r0 -- (fs ' ' + fs ' ')]

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[speclemmaarg: ,st[r -- (sk ' + sk0 ')] = st[st[r -- sk] .refval -- sk0] ,[sk0, sk, r, st] → [fs ', fs ', r0, st] ,F ,storefuns , ,lookup-two ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refval(r) .refval = r])], [EXTRATERMS : (fs ', fs ', r0, st)]]