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Proof step 33 from proof add-gft (previous step)

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

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 32:
sk = fs ', is_fskey(sk) ⊦ r = r0, r0 -- sk ∈ st ∧ oktype(st[r0 -- sk], fs .type, addarray(r, ty, vals, st)) ↔ goodfieldandtype(r0, sk, st)

Rule argument

[speclemmaarg: ,is_fskey(sk) → (fs = sk .fs ↔ sk = fs ') ,[sk, fs] → [sk, fs] ,T ,storekey , ,elim-03 ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ is_fskey(sk) → (fs = sk .fs ↔ sk = fs ')])], [EXTRATERMS : (sk, fs)]]