1. Grab the nearest book.
2. Open the book to page 23.
3. Find the fifth sentence.
4. Post the text of the sentence in your journal along with these instructions.
I had a stack of books next to me for this one the first didnt have any text on the 23rd page, the second didnt have a 23rd page as it was the second volume of my physics book
so...
"Let B be the set of natural numbers n such that 1,...,n are all not in A (otherwise k+1 would be teh smallest member of A), so 1,...,k+1 are not all in A."
Calculus 3rd edition by Michael Spivak