Section 0.6, page 8. For copies produced prior to November, 2023, the second sentence of the fourth paragraph is incorrect. It should read, "It is impossible
to overstate the importance of this invention."
Section 2.2: The correct expression for the number of possible Boolean functions of n variables is 22n. This was incorrect in copies produced prior to February, 2024.
Figure 2-10. For copies produced prior to September, 2023, the caption on Figure 2-10 is incorrect. It should read, "Computation of OR using NAND gates." The table and accompanying text are correct. The date is found at the bottom of the copyright page.