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Proof step 32 from proof add-gft (previous step)

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)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 31:
⊦ r = r0, r0 -- fs ' ∈ st ∧ oktype(st[r0 -- fs '], fs .type, addarray(r, ty, vals, st)) ↔ goodfieldandtype(r0, fs ', st)

Rule argument

[emptyarg]

Additional information

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