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Proof step 71 from proof sharing-pathex-field-self (previous step)

path∃(`docs2store', st[r -- fs '] .refval, r, st), fs ' ∈ instfields(st[r -- _type] .type .class), is_classtype(st[r -- _type] .type) ⊦ r = jvmref, hasSharing(r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ path∃(str, r, r0, st) ↔ (∃ refs. refs ≠ [] ∧ refs .first = r ∧ refs .last = r0 ∧ validrefs(str, refs, mkclasstype(`java.lang.Object' .class), st))
Proof step 70:
∃ refs. refs ≠ [] ∧ refs .first = st[r -- fs '] .refval ∧ refs .last = r ∧ validrefs(`docs2store', refs, mkclasstype(`java.lang.Object' .class), st), fs ' ∈ instfields(st[r -- _type] .type .class), is_classtype(st[r -- _type] .type) ⊦ r = jvmref, hasSharing(r, st)

Rule argument

[speclemmaarg: , path∃(str, r, r0, st) ↔ (∃ refs. refs ≠ [] ∧ refs .first = r ∧ refs .last = r0 ∧ validrefs (str, refs, mkclasstype(`java.lang.Object' .class), st)) ,[st, r0, r, str] → [st, r, st[r -- fs '] .refval, `docs2store'] ,F ,cyclic , ,pathex-def ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, r, st[r -- fs '] .refval, `docs2store')]]