| ⊦ n ∈ files ∧ abs(tree, ROOT_INO)(dirs) ∧ fids-cons(tree, abs-files(files), ofh) ∧ afs-cons(dirs, files) → (⌜n⌝ ∈ tree.fids ↔ links(n, dirs) ≠ ∅) |
abs(tree, ROOT_INO)(dirs), afs-cons(dirs, files), fids-cons(tree, abs-files(files), ofh), n ∈ files ⊦ ⌜n⌝ ∈ tree.fids ↔ links(n, dirs) ≠ ∅