1. MAT 2720 Discrete Mathematics
Exam 1 Info

2. Exam 1
1.1, 2.1, 2.2, 2.4, 2.5, 3.1, 3.3, 3.4

3. Problem Types may include
Computations
Proofs
Induction
Definitions
Explanations
Some Problems may have no partial credits.

4. General Guidelines Pay attention to the expectations.
Study the mistakes that you made in the HW. Do not repeat them.
A correct answer does not warrant full credits or any credits.
The most important thing is the accuracy of your approach, and the presentation.

5. General Guidelines
Certain mistakes or too many mistakes may result in no credits.
Do not skip details
Check and recheck your work.
Make sure I can understand your handwriting.

6. General Guidelines The exam intends to see if
you understand the materials covered including the examples in the lectures
you have done all of your HW
know how to correctly do your HW
you communicate mathematics correctly

7. Induction
For all positive integers n, show that

8. Checklist A 0,

9. Checklist B

10. Checklist C

11. Checklist C

12. Checklist D

13. Universal Practice
In the inductive step for an equality, do not do the following…
You should show…

14. Direct Proof

15. Direct Proof

16. Counterexample

17. Contrapositive

18. Contradiction

19. Contradiction