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Proof step 10 from proof hasSharing-dups-object (previous step)

st[r -- sk0] = st[r -- sk], st[r -- _type] .type = mkclasstype(class), is_referencevalue(st[r -- sk]), sk ∈ instfields(class), sk0 ∈ instfields(class) ⊦ r = jvmref, sk0 = sk, st[r -- sk] .refval = jvmref, ∃ sks1, sks2. fits(r, sks1, st) ∧ fits(r, sks2, st) ∧ sks1 ≠ sks2 ∧ sks1 ≠ [] ∧ sks2 ≠ [] ∧ st[r -- sks1] .refval ≠ jvmref ∧ st[r -- sks1] = st[r -- sks2]

User applied rule exists right

And obtained the following new goals

Proof step 9:
st[r -- sk0] = st[r -- sk], st[r -- _type] .type = mkclasstype(class), is_referencevalue(st[r -- sk]), sk ∈ instfields(class), sk0 ∈ instfields(class) ⊦ r = jvmref, sk0 = sk, st[r -- sk] .refval = jvmref, fits(r, sk ', st) ∧ fits(r, sk0 ', st) ∧ sk ' ≠ sk0 ' ∧ sk ' ≠ [] ∧ sk0 ' ≠ [] ∧ st[r -- sk '] .refval ≠ jvmref ∧ st[r -- sk '] = st[r -- sk0 ']

Rule argument

[EXRARG : pos: right 4, [extquanttermlist: (sk ', sk0 ') abort:F , discard:T , computed:F ]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (sk ', sk0 ')]]