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Proof step 7 from proof datalkeys-drop-orphans (previous step)

key0.data?, ro.inodes?, n ≤ key0.part * VFS_PAGE_SIZE ⊦ key0 ∈ ri ⊖ ro ↔ key0 ∈ ri, inodekey(key0.ino) ∈ ro

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 8:
key0 = datakey(m, m0), key0.data?, ro.inodes?, n ≤ m0 * VFS_PAGE_SIZE ⊦ key0 ∈ ri ⊖ ro ↔ key0 ∈ ri, inodekey(m) ∈ ro

Rule argument

spec: key name: elim-02 seq: ⊦ key.data? → (m = key.ino ∧ m0 = key.part ↔ key = datakey(m, m0)) subst: [key, m, m0] → [key0, m, m0]

Additional information

Used simplifier rules: ⊦ key.data? → (m = key.ino ∧ m0 = key.part ↔ key = datakey(m, m0)); (elim) Used terms: key0, m, m0