University of Ontario Institute of Technology
Faculty of Business and Information Technology
INFR 1010U Discrete Mathematics
Midterm Exam by M. Vargas Martin
October 21, 2009, 14:10 – 17:00h, Room UB2080
Name: ____________________________________ Student number: ______________
Please read the following instructions carefully:
1. This exam consists of 20 questions in a total of 16 pages (including this page). You must
answer all questions. Please make sure that you have all the pages.
2. This is a closed book exam.
Only nonelectronic writing utensils are allowed in the exam.
3. Print your name and student ID on this exam page.
4. You must sign on the attendance sheet when you hand in your exam. Be prepared to show
your student ID.
5. Communication with other people is not allowed during the exam. You may only commu
nicate with the instructor or the teaching assistants.
6. You are not allowed to detach the pages of the exam.
Academic Integrity is a central value of this university. Please read and sign the following
statement:
I am the sole author of all the work and solutions for this exam, as submitted in my name
in this paper, and I have followed the instructions stated in this page.
______________________
Student’s signature
Answer the questions in the space provided. Use the back of the page only if necessary. Show all
your work. Each question is worth 5%.
1. Determine whether the following compound propositions are true or false:
a)
1+1 = 2 if and only if 2
3
= 4.
b)
2
3
= 8 only if 1+1 = 2.
c)
1234567 is a prime number or 1234567 is not a prime number.
d)
2
31
is odd whenever 1+1 = 3.
e)
x
≥
y
or
x
<
y
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 Spring '12
 sdaf
 Logic, Prime number, Logical connective

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