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Proof step 11 from proof validrefkeynotnull-notnewref (previous step)

st[rk] = refval(r), newref(r, st), validrefkeynotnull(str, rk, ty, st) ⊦ r = jvmref

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ validrefkeynotnull(str, rk, ty, st) ↔ rk ∈ st ∧ validrefvalnotnull(str, st[rk], ty, st)
Proof step 10:
st[rk] = refval(r), newref(r, st), rk ∈ st ∧ validrefvalnotnull(str, st[rk], ty, st) ⊦ r = jvmref

Rule argument

[crewrite-arg: validrefkeynotnull-def , F , [st, ty, rk, str] → [st, ty, rk, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, ty, rk, str)]]