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Proof step 11 from proof validstatfield-addclass-same (previous step)

okval(fis[mkfs(class, ty, fieldvar) '], ty) ∧ (is_referencevalue(fis[mkfs(class, ty, fieldvar) ']) → validrefval(str, fis[mkfs(class, ty, fieldvar) '], ty, st)), mkfs(class, ty, fieldvar) ' ∈ statfields(class), tdname∃(str, class), type∃(str, ty), mkfs(class, ty, fieldvar) ' ∈ fis, initdone(class, addclass(class, fis, st)) ⊦ class = `java.lang.Object' .class, ty = void_type, (is_reftype(ty) → validrefval(str, fis[mkfs(class, ty, fieldvar) '], ty, addclass(class, fis, st))) ∧ okval(fis[mkfs(class, ty, fieldvar) '], ty)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 10:
mkfs(class, ty, fieldvar) ' ∈ statfields(class), tdname∃(str, class), type∃(str, ty), mkfs(class, ty, fieldvar) ' ∈ fis, initdone(class, addclass(class, fis, st)), is_reftype(ty), is_referencevalue(fis[mkfs(class, ty, fieldvar) ']), validrefval(str, fis[mkfs(class, ty, fieldvar) '], ty, st) ⊦ class = `java.lang.Object' .class, ty = void_type, validrefval(str, fis[mkfs(class, ty, fieldvar) '], ty, addclass(class, fis, st))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_reftype(ty) → ( okval(val, ty) ↔ is_referencevalue(val))])]]