- Proof Quiz will be a proof that a function is/is not injective/surjective. Read Hammack Section 12.2. Examples 12.4 and 12.5 are ideal models, as are exercises 2-10 (where “verify” means “prove or disprove” (disprove means prove the negation).
- Reminder that individual homework is due. The assignment is under Resources (above) under Groupwork. (But you can do it individually.) Hand in on canvas.
- You can still earn badges in office hour Wed/Thur, as explained previously.
- In class, we will continue talking about functions and cardinalities.