What is the Biggest Number: Scott Aaronson's Funny blog post; Scott Aaronson's (still funny) serious article
December 13: Here is the complete proof that I promised you of the difficult exercise we solved in class – that the cardinality of the set of invertible functions from N to N is aleph.
December 20: Here is the complete proof that I promised you of the exercise we solved in class – that C(alpeh0,aleph0)=alpeh.
January 12: Scan of today's class notes thanks to Maayan.
January 18: Solution of a question in recursion.