May 12: We will have a review session on Sat, May 17, 4-6pm. The location is TBA. For those who can't make it, you can come on Wednesday, May 14 to my office for a review. We shall start at 3pm.

May 6: The Final Exam will be on Tuesday, May 20 from 4pm to 6pm in LGRT 101. There will be 5 regular problems and 1 bonus problem. It will mainly cover the materials after Exam 3, namely, Note 6 and 7, but you also need to be familar with previous materials. A Practice Exam with Solutions is given for your preparation.

April 3: Exam 3 will be in class on Friday, April 11. There are 4 problems with total score 50, 3 from Chapter 3 (3.1, 3.2, 3.3, 3.4) and 1 from Chpater 5 (5.1, 5.2, 5.4). The following are possible problems:
(1) Finding the remainder using congruence.
(2) Prove divisibility using congruence and/or using Fermat's little theorem.
(3) Equivalence relation, including its defining set $S$ and partition.
(4) Finding the multiplicative inverse of an element in $\Z_p$.
(5) Using congruence to prove something.
(6) Something involving the decimal expansions.

March 5: Exam 2 will be in class on Friday, March 14. There are 4 problems with total score 50. It covers mathematical induction including Recursion and Chapter 2 (2.1, 2.2, 2.5). You can use NOTES 2 and 3 to study. Homework sets 4 and 5 are important in preparation for exam 2.

Feb 12: Exam 1 will be in class on Friday, Feb. 22. There are 4 problems with total score 25. It covers Chapter 1 and one problem on mathematical induction. Topics in Chapter 1 include Truth table, Quantification, and Proofs, which are responsible for the other three problems. For practice, the first 3 Homework sets should be sufficient. Pay some special attention to the proofs involving sets.

Feb 08: PLEASE REGISTER FOR MATH 391A BY MONDAY, FEB 11. This is the last day of add/drop period. You MUST only register for seminar 4, 6, 8.

04 Seminar (50655) Tu 6:00PM - 6:50PM
06 Seminar (81655) We 3:35PM - 4:25PM
08 Seminar (81657) We 1:25PM - 2:15PM.

Feb 04: No discussion session this week. UPON REQUEST (her email is erossoli@student.umass.edu), our TA Elizabeth will be available in her office LGRT 1117 during those hours (Tu 6-6:50pm, Wed 1:25-2:15pm, 3:35-4:25pm).

Feb 01: Math 391A times have been decided. They are: Tu 6-6:50pm, Wed 1:25-2:15pm, and Wed 3:35-4:25pm. The rooms are yet to be assigned. Once the rooms are confirmed, hopefully sometime Monday or Tuesday, you will be able to register on SPIRE. At this point, I don't know yet if we would have math 391A meeting next week. I will let you know when the information is available.

Jan 29: The Disability Services is recruiting a note-taker for this course. Upon completion of the semester, note-takers will receive one credit (Pass/Fail), or a letter verifying 45 hours of community service. Interested ones shall email their availability to Disability Services at notes@admin.umass.edu.

Jan 23: Welcome to Math 300!