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Proof step 10 from proof gft-out (previous step)

⊦ r = jvmref, is_fskey(sk) ∧ r -- sk ∈ st[_out, val] ∧ okval(st[_out, val][r -- sk], sk .fs .type) ↔ ¬ is_indexkey(sk) ∧ r -- sk ∈ st ∧ okval(st[r -- sk], sk .fs .type)

User applied rule structural induction

And obtained the following new goals

Proof step 9:
⊦ r = jvmref, is_fskey(fs ') ∧ r -- fs ' ∈ st[_out, val] ∧ okval(st[_out, val][r -- fs '], fs ' .fs .type) ↔ ¬ is_indexkey(fs ') ∧ r -- fs ' ∈ st ∧ okval(st[r -- fs '], fs ' .fs .type)

Rule argument

[VARWITHVARSEQSARG : sk, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : storekey generated by ', ';], [CSIMPSEQ : ⊦ ¬ is_fskey(i ')], [CSIMPSEQ : ⊦ is_indexkey(i ')])]]