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Proof step 22 from proof validrefkeynotnull-union (previous step)

st[rk] = refval(r), rk ∈ st, r ≠ jvmref ∧ validref(str, r, ty, st) ⊦ r = jvmref, is_referencevalue(refval(r)) ∧ validrefnotnull(str, refval(r) .refval, ty, st0 ∪ st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 21:
st[rk] = refval(r), rk ∈ st, validref(str, r, ty, st) ⊦ r = jvmref, validrefnotnull(str, r, ty, st0 ∪ st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refval(r) .refval = r], [CSIMPSEQ : ⊦ is_referencevalue(refval(r))])]]