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Proof step 1 from proof crash-neutral-delete (conclusion)

⊦ ⟨pcache_delete#(ino, pageno; err, pcache)⟩ true

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 2:
⊦ ⟨let key = datakey(ino, pageno) in pcache := pcache -- key⟩ true

Rule argument

pos: right 1

Additional information

Used simplifier rules: delete: ⊦ ;