Math 366

Discrete Mathematical Structures I

MWF 3:30 CH 420

Dr. John Maharry
MA 330  292-6765
maharry@math.ohio-state.edu

www.math.ohio-state.edu/~maharry


Text: S. S. Epp, Discrete Mathematics with Applications (3nd edition)
Office Hours: 2:30-4:30 Tues/Thurs

Grading: Your grade will be determined by

Note that Midterm II will consist of an in-class portion as well as a take-home portion. A lot of homework will be assigned but most will not be graded. However, doing the homework faithfully is the only way that you will learn the material. The grading scale will be (approximately) as follows:

A A- B+ B B- C+ C C- D+ D E
90 87 83 80 77 73 70 67 63 60 <60

Adjustments may be made at the end of the quarter. I might lower the cutoff percentage for a particular grade, but I will not raise it.

The main goal of this course is for you to learn the fundamentals of reading and writing formal logical and mathematical prose: how to read definitions, theorems and proofs; write basic proofs; formulate definitions; produce examples and counterexamples, and so on. These skills are fundamental to further study in most areas of mathematics and theoretical computer science.

Homework Assignments


Some Extra Problems you might want to try


Tentative Schedule


Monday Wednesday Friday
Jan 5
First Class 
Intro and Sec 1.1 
Logical Form and Equivalence 
Jan 7
Sec 1.2 
Conditional Statements
Jan 9
Sec 1.3 
Valid and Invalid Arguments 
Knights and Knaves Problems
Jan 12
Sec 1.4 
Application: Digital Logic Circuits

Hand in Homework Set #1
Sec. 1.1,1.2, 1.3

Jan 14
Sec 2.1 
Introduction to Predicates and Quantified Statements

Quiz 1

Jan 16
Sec 2.2 
Introduction to Predicates and Quantified Statements  II


Jan 19

Martin Luther King Day
No Class


Jan 21

Sec  2.3 
Statements Contining Multiple Quantifiers
Quiz 2
Hand out Problem Set 1due Jan 28
Hand in Homework Set #2
Sec. 1.4,2.1,2.2
Jan 23

Sec 2.4
Arguments with Quantified Statements



Jan 26

Sec 3.1 
Direct Proof and Counterexample 

Hand in Homework Set #3
Sec. 2.3,2.4
Jan 28

Sec 3.2 
Direct Proof : Rational Numbers
Problem Set 1 Due
Jan 30

Midterm I
Feb 2

Sec 3.3 
Direct Proof :
Divisibility

Feb 4

Sec 3.4  Direct Proof:
Division into cases and the
Quotient Remainder Theorem 
Feb 6

Sec 3.6 
Indirect Argunment: Contradiction and Contrapositions

Hand in Homework Set #4
Sec. 3.1,3.2,3.3
Feb 9
Sec. 3.7
Two Classical Theorems


Feb 11 
Sec 4.1 
Sequences and Series

Hand out Problem Set  2
Due Feb 20

Feb 13 
Sec 4.2 
Mathematical Induction I

Hand in Homework Set #5
Sec. 3.4,3.6,3.7
Feb 16 
Sec 4.3 
Mathematical Induction II

Web Pages about Induction
Making Mathematics
Another from the same site
Feb 18
Sec 4.3 
Mathematical Induction II

Feb 20

Sec 4.4 
Strong Induction and the Well-Ordering Principle

Hand Out Take Home Midterm  2
Due March 3

Take Home Quiz II Due

Feb 23
Sec 5.1
Basic Definitions of Set Theory 
Sec. 5.2
Properties of Sets

Hand in Homework Set #6
Sec. 4.1,4.2, 4.3


Feb 25 
Sec 5.3 
Disproofs, Algebraic Proofs and Boolean Algebras 

Midterm 2
IN-class part
Definitions and "Easy Proofs"

Should take 20 minutes
 

Feb 27
Sec 10.1
Relations on Sets
March 1

Sec 7.1 Functions Defined on General Sets

Hand in Homework Set #7
Sec. 4.4,5.1,5.2,5.3
March 3 
Sec 7.2 
One-to-one and Onto, Inverse Functions

Take Home Part of Midterm 2 Due

March 5 
Sec 7.2 
One-to-one and Onto
Hotel Infinity
More Infinity Stuff
Still More
More paradoxes (paradice?)
March 8 

Sec 7.4
Composition of Functions

Hand in Homework Set #8
Sec. 10.1,7.1,7.2

March 10
Sec 7.4
Composition of Functions

7.3 Pigeon Hole Principle
Problems I
Problems II
Mostly for fun...

March 12 

 Review

Finals Week March 17
Final Exam
3:30 -5:18
 



Further topics, if time is available: