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Proof step 4 from proof validref-put-norefval-01 (previous step)

okval(val, fs .type), validref(str, r, ty, st) ⊦ fs .type = void_type, fs ' = _length, is_referencevalue(val), validref(str, r, ty, st[r1 -- fs ', val])

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 3:
fs = mkfs(class, ty0, fieldvar), okval(val, ty0), validref(str, r, ty, st) ⊦ ty0 = void_type, fs ' = _length, is_referencevalue(val), validref(str, r, ty, st[r1 -- fs ', val])

Rule argument

[speclemmaarg: , class = fs .class ∧ ty = fs .type ∧ fieldvar = fs .field ↔ fs = mkfs(class, ty, fieldvar) ,[fs, class, ty, fieldvar] → [fs, class, ty0, fieldvar] ,T ,fieldspec , ,elim ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ class = fs .class ∧ ty = fs .type ∧ fieldvar = fs .field ↔ fs = mkfs(class, ty, fieldvar)])], [EXTRATERMS : (fs, class, ty0, fieldvar)]]