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Proof step 19 from proof initsubset-initerror (previous step)

sk = fs ', fs = mkfs(class0, ty, fieldvar), is_fskey(sk), initdone(class3, st), tdname∃(str, class3), sk ∈ statfields(class3), tdname∃(str, class0), sk ∈ statfields(class0), initdone(class0, st[jvmref -- mkfs(class, void_type, `initstate' .field) ', initval(error)]), initdone(class0, st) → validfield(str, jvmref, sk, st) ⊦ initdone(class, st), validfield(str, jvmref, sk, st[jvmref -- mkfs(class, void_type, `initstate' .field) ', initval(error)])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 18:
initdone(class3, st), tdname∃(str, class3), mkfs(class0, ty, fieldvar) ' ∈ statfields(class3), tdname∃(str, class0), mkfs(class0, ty, fieldvar) ' ∈ statfields(class0), initdone(class0, st[jvmref -- mkfs(class, void_type, `initstate' .field) ', initval(error)]), initdone(class0, st) → validfield(str, jvmref, mkfs(class0, ty, fieldvar) ', st) ⊦ initdone(class, st), validfield(str, jvmref, mkfs(class0, ty, fieldvar) ', st[jvmref -- mkfs(class, void_type, `initstate' .field) ', initval(error)])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_fskey(fs ')])]]