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Proof step 16 from proof validref-putrkvs (previous step)

sk = fs ', fs = mkfs(class, ty0, fieldvar), is_fskey(sk), validvals(str, rkvs0, st), validref(str, r, ty, st), validval(str, val, ty0, st), ∀ str, r, ty, st. validref(str, r, ty, st) ∧ validvals(str, rkvs0, st) → validref(str, r, ty, st[rkvs0]) ⊦ sk = _length, ty0 = void_type, validref(str, r, ty, st[r0 -- sk, val][rkvs0]), validref(str, r, ty, st[r0 -- sk, val]), (is_referencevalue(val) → validref(str, val .refval, ty0, st) ∧ is_reftype(ty0)) ∧ (¬ is_referencevalue(val) → okval(val, ty0))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 15:
validvals(str, rkvs0, st), validref(str, r, ty, st), validval(str, val, ty0, st), ∀ str, r, ty, st. validref(str, r, ty, st) ∧ validvals(str, rkvs0, st) → validref(str, r, ty, st[rkvs0]) ⊦ mkfs(class, ty0, fieldvar) ' = _length, ty0 = void_type, validref(str, r, ty, st[r0 -- mkfs(class, ty0, fieldvar) ', val][rkvs0]), validref(str, r, ty, st[r0 -- mkfs(class, ty0, fieldvar) ', val]), (is_referencevalue(val) → validref(str, val .refval, ty0, st) ∧ is_reftype(ty0)) ∧ (¬ is_referencevalue(val) → okval(val, ty0))

Rule argument

[emptyarg]

Additional information

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