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Theorem datalkeys-drop-orphans

⊦ ro.inodes? ∧ ¬ key ∈ ro → datakeys(key, n, ri ⊖ ro) = datakeys(key, n, ri)

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 8
Used lemmas: inodes-nodata,
Used spec theorems:
- set-basic/node-index/Extension
- aubifs-base/in-dels-ro
Used simplifier rules: