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Proof step 232 from proof hasSharing-addobj-same (previous step)

fis .keys = instfields(class), st[r1 -- sks0] = refval(r2), st[r0 -- sks] = refval(r2), validfieldinits(str, fis, st), newref(r, st), validreflist(str, mkjavavalues(fis .vals .nonnullrefs), mkclasstype(`java.lang.Object' .class), st), fits(r0, sks, st), fits(r1, sks0, st), r0 ∈ fis .vals .nonnullrefs, r1 ∈ fis .vals .nonnullrefs ⊦ r1 = r0, r2 = jvmref, r = jvmref, junkref(str, r, addobj(r, class, fis, st)), hasSharing(r, addobj(r, class, fis, st)), dups(fis .vals .nonnullrefs), hasSharing(fis .vals .nonnullrefs, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: hasSharing-def-better antecedent: succedent: hasSharing(r, st) ↔ (∃ sks1, sks2. fits(r, sks1, st) ∧ fits(r, sks2, st) ∧ sks1 ≠ sks2 ∧ st[r -- sks1] .refval ≠ jvmref ∧ st[r -- sks1] = st[r -- sks2]) substlist: [st, r] → [addobj(r, class, fis, st), r] add preconditions?: F is rewrite lemma?: T current spec?: T rotate lemma?: F replace all?: T paths: ((1, 0, 4)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (addobj(r, class, fis, st), r)]]