| m + n < # avol, ∀ n0. n ≤ n0 ∧ ¬ n + m < n0 ∧ n0 < # avol → avol[m + n, mapped(buf)][n0].mapped? ∧ # avol[m + n, mapped(buf)][n0].data = LEB_SIZE ⊦ # buf = LEB_SIZE ∧ (∀ n0. n ≤ n0 ∧ n0 < n + m ∧ n0 < # avol → avol[n0].mapped? ∧ # avol[n0].data = LEB_SIZE) |
m + n < # avol, ∀ n0. n ≤ n0 ∧ ¬ n + m < n0 ∧ n0 < # avol → avol[m + n, mapped(buf)][n0].mapped? ∧ # avol[m + n, mapped(buf)][n0].data = LEB_SIZE ⊦ # buf = LEB_SIZE ∧ (n ≤ n0 ∧ n0 < n + m ∧ n0 < # avol → avol[n0].mapped? ∧ # avol[n0].data = LEB_SIZE)