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Proof step 4 from proof gft-out (previous step)

⊦ r = jvmref, r -- mkfs(class, ty, fieldvar) ' ∈ st[_out, val] ∧ okval(st[_out, val][r -- mkfs(class, ty, fieldvar) '], ty) ↔ r -- mkfs(class, ty, fieldvar) ' ∈ st ∧ okval(st[r -- mkfs(class, ty, fieldvar) '], ty)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ rk ≠ rk0 → (st[rk0, val][rk]) = st[rk]

Rule argument

[speclemmaarg: ,rk ≠ rk0 → (st[rk0, val][rk]) = st[rk] ,[rk, val, rk0, st] → [r -- mkfs(class, ty, fieldvar) ', val, _out, st] ,F ,store ,javastore-ostorea ,At-other ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ r ≠ jvmref → r -- sk ≠ _out], [CSIMPSEQ : ⊦ rk ∈ st[rk0, val] ↔ rk = rk0 ∨ rk ∈ st])], [EXTRATERMS : (r -- mkfs(class, ty, fieldvar) ', val, _out, st)]]