A good time to join the party, if you haven’t yet been following along with this chapter-by-chapter posting of a new version of Gödel Without (Too Many) Tears.
Along with revised versions of early chapters (thanks to all those who sent comments and corrections, a few here, and more by e-mail), here is Chapter 10, on ‘The Arithmetization of Syntax’. So this is where we get to today:And then, over the next four chapters, we (at last) get to prove the first incompleteness theorem, in pretty much Gödel’s way. We also introduce the Diagonalization Lemma, prove Rosser’s Theorem and Tarski’s Theorem. A busy but fun week!