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Proof step 31 from proof add-gft (previous step)

⊦ r = r0, r0 -- fs ' ∈ st ∧ oktype(st[r0 -- fs '], fs .type, addarray(r, ty, vals, st)) ↔ goodfieldandtype(r0, fs ', st)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 30:
fs = mkfs(class, ty0, fieldvar) ⊦ r = r0, r0 -- fs ' ∈ st ∧ oktype(st[r0 -- fs '], ty0, addarray(r, ty, vals, st)) ↔ goodfieldandtype(r0, fs ', st)

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)]]