| key ∈ ks, datakey(m, m0) ∈ ri ⊦ # ks = 0, (ri ⊖ key)[datakey(m, m0)] = ri[datakey(m, m0)], ks = ∅, datakey(m, m0) ∈ ks, inodekey(m) ∈ ks |
⊦ datakey(ino, n) ∈ ri ∧ datakey(ino, n) ≠ key0 ∧ inodekey(ino) ≠ key0 → (ri ⊖ key0)[datakey(ino, n)] = ri[datakey(ino, n)]
Used terms: m0, m, key, ri