| pre-mkdir(p_inode, dent, md, dirs, files), afs-cons(dirs, files), asynced, dirs0 = dirs \ orphans(dirs, files), files0 = files \ orphans(dirs, files) ⊦ ⟨afs_mkdir#(md; p_inode, c_inode, dent, err, dirs, files; asynced)⟩ (asynced ∧ dirs0 = dirs \ orphans(dirs, files) ∧ files0 = files \ orphans(dirs, files)) |