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Proof step 5 from proof putBar-in (previous step)

⊦ rk ∈ putByteArray(bytes, r, i, st) ↔ rk .ref = r ∧ ¬ is_fskey(rk .key) ∧ ¬ rk .key .index < i ∧ ¬ i + n→i(# bytes) ≤ rk .key .index ∨ rk ∈ st

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 4:
rk = r0 -- sk ⊦ rk ∈ putByteArray(bytes, r, i, st) ↔ r0 = r ∧ ¬ is_fskey(sk) ∧ ¬ sk .index < i ∧ ¬ i + n→i(# bytes) ≤ sk .index ∨ rk ∈ st

Rule argument

[speclemmaarg: ,r = rk .ref ∧ sk = rk .key ↔ rk = r -- sk ,[rk, r, sk] → [rk, r0, sk] ,T ,refkey , ,elim ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ r = rk .ref ∧ sk = rk .key ↔ rk = r -- sk])], [EXTRATERMS : (rk, r0, sk)]]