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Proof step 16 from proof validrefkeynotnull-has-field (previous step)

is_referencevalue(st[rk]) ∧ validrefnotnull(str, st[rk] .refval, mkclasstype(class), st), rk ∈ st, sk ∈ instfields(class), is_fskey(sk) ⊦ st[rk] .refval -- sk ∈ st

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
⊦ validrefnotnull(str, r, ty, st) → r ≠ jvmref
Proof step 15:
is_referencevalue(st[rk]), validrefnotnull(str, st[rk] .refval, mkclasstype(class), st), rk ∈ st, sk ∈ instfields(class), is_fskey(sk) ⊦ st[rk] .refval = jvmref, st[rk] .refval -- sk ∈ st

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]