What should you read of the first six chapthers of the book?

You should read

• Section 4.2 (pp. 105-108)
• Section 4.6 (pp. 113-115)
• Section 3.1 (pp. 73-74)
• Section 5.7 (pp. 139-142). This is a section on G?del numbers. G?del number are very similar to computable indices. I will explain the G?del numbers when we need them.

Maybe you need to read a little bit more in order to understand the notation you find on these pages, but if you have attended the lectures that should in principle not be necessary.