Can you help me with this exercise? It's from Lang's

>>9122784
(a) is trivial

(b) is also trivial

where did you get stuck?

>doing proofs

>>9122787
part b, I don't see how it's trivial

>>9122789
>part b, I don't see how it's trivial
what have you tried?

>>9122784
Step 1) Write a computer program that creates a list of all numbers from 1 to 100.
Step 2) Write a computer program that tests the primality of a number.
Step 3) Write a computer program that finds all numbers in a list that differ by 2.
Step 4) Combine those programs to create your list.

File: Capture.png (36KB, 1634x246px) Image search: [Google]

36KB, 1634x246px

>>9122784
Did you even try before posting?

>>9122784
>part b
Terry Tao should be able to help you with this