Keep thinking about the relative cardinalities of the natural numbers, integers, rationals and reals. Think about the cartesian product of the integers with itself, too.

Read Hammack, Section 12.2. Do some exercises from 12.2 — maybe 5 of them.

Get a start on the Assignment for this week, which you’ll hand in on canvas. It’s listed under the Groupwork section of Resources. For more info on how this individual assignment replaces a groupwork, see the post on Monday.