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Proof step 8 from proof validref-newref-subset (previous step)

st ⊆ st0, validref(str, r, mkarraytype(byte_type), st), newref(r, st0) ⊦ r = jvmref, newref(r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ newref(r, st) ↔ r ≠ jvmref ∧ ¬ r ∈ st
Proof step 7:
st ⊆ st0, validref(str, r, mkarraytype(byte_type), st), r ≠ jvmref ∧ ¬ r ∈ st0 ⊦ r = jvmref, newref(r, st)

Rule argument

[speclemmaarg: ,newref(r, st) ↔ r ≠ jvmref ∧ ¬ r ∈ st ,[st, r] → [st0, r] ,F ,storefuns , ,newref-def ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st0, r)]]