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Proof step 4 from proof refine-open (
previous step
)
of-cons(of, dirs, files), dom of < ino, afs-cons(dirs, files) ⊦ ⟪vfs_open#(p, mode, user, dirs, files, asynced; fd, err, of, ino)⟫ (of-cons(of, dirs, files) ∧ dom of < ino)
A spec-lemma