| # links(m1, dirs) = 0, files[m1] = mkfile(m2, md0, 0, content0), files[ino] = mkfile(m, md, m0, content), dirs[ino] = mkdir(m3, md1, m4, m5, entries), afs-cons(dirs, files), ROOT_INO ∈ dirs, m1 ∈ files, ino ∈ dirs ∧ ino ≠ ROOT_INO ∧ links(ino, dirs) = ∅ → entries = ∅, ino ∈ dirs → m4 = # links(ino, dirs) ∧ m4 ≤ 1 ∧ m3 = # entries ∧ m5 = # subdirs(ino, dirs), ino ∈ files → ¬ ino ∈ dirs ∧ m0 = # links(ino, dirs), ino ∈ dirs ∧ name ∈ entries → entries[name] ∈ dirs ∨ entries[name] ∈ files ⊦ m1 ∈ dirs, (ino ≠ m1 ∧ ino ∈ files → ¬ ino ∈ dirs ∧ m0 = # links(ino, dirs)) ∧ (ino ∈ dirs ∧ name ∈ entries → entries[name] ∈ dirs ∨ entries[name] ≠ m1 ∧ entries[name] ∈ files) |
# links(m1, dirs) = 0, dirs[ino] = mkdir(m3, md1, m4, m5, entries), files[ino] = mkfile(m, md, m0, content), files[m1] = mkfile(m2, md0, 0, content0), afs-cons(dirs, files), m1 ∈ files, ROOT_INO ∈ dirs, ino ∈ dirs ∧ name ∈ entries → entries[name] ∈ dirs ∨ entries[name] ∈ files, ino ∈ files → ¬ ino ∈ dirs ∧ m0 = # links(ino, dirs), ino ∈ dirs ∧ ino ≠ ROOT_INO ∧ links(ino, dirs) = ∅ → entries = ∅, ino ∈ dirs → m4 = # links(ino, dirs) ∧ # links(ino, dirs) ≤ 1 ∧ m3 = # entries ∧ m5 = # subdirs(ino, dirs) ⊦ m1 ∈ dirs, (ino ≠ m1 ∧ ino ∈ files → ¬ ino ∈ dirs ∧ m0 = # links(ino, dirs)) ∧ (ino ∈ dirs ∧ name ∈ entries → entries[name] ∈ dirs ∨ entries[name] ≠ m1 ∧ entries[name] ∈ files)