**L 26, 27, 28, Last week of the term**. Will cover the basic properties of ordinal numbers in Chapter 12 and review the class. (Working on the suggested Problems and Exercises in Homework will help understand these lectures.)

**L25, 3/9, F**. Will complete the discussion of some of the remaining material in Chapter 11, primarily 11.18, 11.26 - 11.31 and 11.34 - 11.36, and then start on Chapter 12, which we will cover (almost) completely.

Look in the Homework page for some suggested problems from Chapter 11.

**L24, 3/7, W**. Continued in Chapter 11, which we will not cover completely. Combined with the parts we covered on Monday, we have completed 11.1 - 11.14 and discussed some further material lightly.

**L23, 3/5, M**. Introduced the Axiom of Replacement in Chapter 11 and derived some of its elementary consequences.

**L22, 3/2, F**. Will review Chapters 7, 8 and 9 on which the second midterm will be based.

**L21, 2/28, W**. Will finish Chapter 9---mostly giving the (not simple) proof of König's Theorem 9.21.

**L20, 2/26, M**. Continued in Chapter 5, through (almost) the proof of 9.16.

**L19, 2/23, F**. Continued in Chapter 9, not following exactly the order in the book.

**L18, 2/21, W**. Will finish Chapter 8 on the basic facts about AC and start on Chapter 9, aiming to get to 9.7.

**L17, 2/16, F**. Will review Chapter 7, prove the Fixed Point Thm. 7.35 and start on Chapter 8.

**L16, 2/14, W**. Will cover most of the remaining material in Chapter 7, most significantly Hartogs' Thm 7.34.

**L15, 2/12, M**. Will start with the Iteration Lemma 7.25 and get (at least) through the comparability of well ordered sets and its corollaries, 7.32 and 7.33.

**L14, 2/9, F**. Will continue with the theory of welloredrings, starting with 7.7 and aiming to get through the Iteration Lemma 7.25.

**L13, 2/7, W**. Will go over 6.1 - 6.18, the parts of Chapter 6 that we will cover, and then start on Chapter 7 which we will cover in full.

**L12, 2/5, M**. Will review the parts of Chapters 1 - 5 that we have covered (and on which the test will be based).

**L11, 2/2, F**. Will continue with Chapter 5 and finish the part of it that we will cover.

**L10, 1/31, W**. Will review and continue with Chapter 5, aiming to get through at least 5.15 (properties of addition).

**L9, 1/29, M**. Started on the natural numbers in Chapter 5, stopped somewhere in the middle of the proof of 5.7.

**L8, 1/26, F**. Did not get as far on W, so the goal is the same: will finish Chapter 4 and start on Chapter 5, aiming to get to 5.6.

**L7, 1/24, W**. Will finish Chapter 4 and start on Chapter 5, aiming to get to 5.6.

**L6, 1/22, M**. Will start on Chapter 4, aiming to get (at least) to 4.14.

**L5, 1/19, F**. Went through Chapter 3, a bit quickly, skipping much of the discussion; make sure you read the Chapter if you want to get a good understanding of this material.

**L4, 1/17, W**. Review Chapter 2 briefly and start on Chapter 3, try to get through 3.17. There is a lot of "talk" in this Chapter and I will cover it lightly: it will really help your understanding of this lecture if you read ahead of time pages 19 - 23.

**L3, 1/12, F**. Will aim to finish Chapter 2. Got through 2.18. The remainder of the Chapter will be covered by Assaf in the Section meeting on Tuesday, Jan. 16.

**L2, 1/10, W**. Chapter 2, through Cor 2.14, the uncountability of the real numbers. (I will skip many details, so it will really help if you read through this material before class.)

**L1, 1/8, M**. Will review briefly the material in Chapter 1 and start with Chapter 2, aiming to reach 2.7.