Sebastian Casalaina

Homework and Syllabus

Introduction to Discrete Mathematics

MATH 2001 Fall 2024

Homework must be submitted via Canvas, and is due at the start of class, with your name and homework number on it to receive credit.  You will be graded on the clarity of your exposition.  Messy, disorganized, or poorly written assignments will not receive credit.  

Please read the suggested texts before class, and then after class make sure to attempt the homework for the sections we covered that day.

You may find the Math Academic Resource Center ("MARC") to be useful as a meeting point for discussing homework, and a place to get some further help understanding the material.


Date Topics
Reading
Homework
L1 Monday August 26
Introduction: Course logistics. 


Introduction to sets: Introduction to sets, and cartesian products
Hammack Chapter 1 Sections 1.1-2 HW 1a

Hammack

Section 1.1 Exercises: 8, 18, 40.

Section 1.2 Exercises: 2, 4, 12.
L2 Wednesday August 28
Introduction to LaTeX Read over Chapters 1--2 of The Not So Short Introduction to LaTeX 2e

Bring a laptop with LaTeX installed (see the bottom of the page).

We will use the following .tex and .bib files (which generated this .pdf).  You will also want to download the following .pdf, which is included as a graphic.

You can also find these files in this directory.

L3 Friday August 30
Introduction to sets: Subsets and power sets. Hammack Chapter 1 Sections 1.3-4 HW 1 DUE

Homework must be submitted via Canvas

Solution to 1.2.4

Solution to 1.2.12



HW 2a

Hammack

Section 1.3 Exercises: 2, 6, 12.

Section 1.4 Exercises: 2, 10, 14.




 Monday September 2
LABOR DAY
NO CLASS
LABOR DAY
L4 Wednesday September 4
Introduction to LaTeX continued Read over Chapter 3 of The Not So Short Introduction to LaTeX 2e

Bring a laptop to class with LaTeX installed (see the bottom of the page).

We will use the following .tex and .bib files (which generated this .pdf).

You can also find these files in this directory.

And here is the simple template we used.


L5 Friday September 6
Sets continued: Union, intersection, difference, complement, Venn diagrams.  (For complements, we are using the notation A^C, whereas the book is using the notation \overline A.) Hammack Chapter 1 Sections 1.5-7 HW 2 DUE

5 points extra credit for typing in LaTeX.  You must submit both the .pdf and .tex file to recieve extra credit.

Solution to 1.3.12

Solution to 1.4.10



HW 3a

Hammack

Section 1.5 Exercises: 2, 4, 6.

Section 1.6 Exercise: 2.

Section 1.7 Exercises: 5, 6.




L6 Monday September 9
Sets continuted: Indexed sets, sets of numbers, Russell's paradox. Hammack Chapter 1 Sections 1.8-10 HW 3b

Hammack

Section 1.8 Exercises: 2, 8, 11, 12, 13, 14.
L7 Wednesday September 11
Introduction to logic: Overview, statements, and, or, not. Hammack Chapter 2 Sections 2.1-2 HW 3c

Hammack

Section 2.1 Exercises: 2, 4, 6.

Section 2.2 Exercises: 2, 6, 9.
L8 Friday September 13
Logic continued: Conditional statements, biconditional statements. Hammack Chapter 2 Sections 2.3-4 HW 3 DUE

5 points extra credit for typing in LaTeX.  You must submit both the .pdf and .tex file to recieve extra credit.

Solution to 1.6.2

Solution to 1.8.14



H
W 4a

Hammack

Section 2.3 Exercises: 1, 8, 10.

Section 2.4 Exercise: 2, 3, 4.




L9 Monday September 16
Logic continued: Truth tables, logical equivalence. Hammack Chapter 2 Sections 2.5-6 HW 4b

Hammack

Section 2.5 Exercises: 4, 6, 8.

Section 2.6 Exercises: 4, 6, 9.
L10 Wednesday September 18
Logic continued: Quantifiers, translating English into symbolic statements, negating statements, logical inference. Hammack Chapter 2 Sections 2.7-11 HW 4c

Hammack

Section 2.7 Exercises: 2, 8.

Section 2.9 Exercises: 2, 5.

Section 2.10 Exercises: 4, 10.
L11 Friday September 20
Review:
Homework review

HW 4 DUE

2 points extra credit for typing in LaTeX.  You must submit both the .pdf and .tex file to recieve extra credit.

Solution to 2.6.9

Solution to 2.10.4




L12 Monday September 23
Review:
General review


L13 Wednesday September 25
Review:
Review practice exam
Practice exam and solutions.

Friday September 27
MIDTERM I
MIDTERM I




L14 Monday September 30 Counting: Lists, the multiplication principle.
Hammack Chapter 3 Sections 3.1-2
HW 5a

Hammack

Section 3.2
Exercises: 1-6.
L15 Wednesday October 2 Review Midterm I


L16 Friday October 4 Counting continued: The addition and subtraction principles, factorials and permutations.
Hammack Chapter 3 Sections 3.3-4 HW 5 DUE

2 points extra credit for typing in LaTeX.  You must submit both the .pdf and .tex file to recieve extra credit.

Solution to 3.2.2

Solution to 3.2.6



HW 6a

Hammack

Section 3.3
Exercises: 1-3.

Section 3.4
Exercises: 7, 10, 12.




L17 Monday October 7 Counting continued: Counting subsets, Pascal's triangle and the binomial theorem. Hammack Chapter 3 Sections 3.5-6 HW 6b

Hammack

Section 3.5
Exercises:1-3.

Section 3.6.
Exercises: 3, 5, 7.
L18 Wednesday October 9 Counting continued: The inclusion-exclusion principle, counting multisets
Hammack Chapter 3 Sections 3.7-8 HW 6c

Hammack

Section 3.7
Exercises: 1-3.

Section 3.8
Exercises: 7, 9, 11.
L19 Friday October 11 Counting continued: The division and pigeonhole principles, combinatorial proof.
Hammack Chapter 3 Sections 3.9-10 HW 6 DUE

2 points extra credit for typing in LaTeX.  You must submit both the .pdf and .tex file to recieve extra credit.

Solution to 3.6.7

Solution to 3.8.11



HW 7a

Hammack

Section 3.9
Exercises: 2-4.

Section 3.10
Exercises: 1-3.




L20 Monday October 14
Techniques of proof: Direct proof. Hammack Chapter 4 HW7b

Hammack

Chapter 4 Exercises: 1, 3, 5, 7, 9, 10.

L21 Wednesday October 16
Techniques of proof continued: Contrapositive proof. Hammack Chapter 5 HW7c

Hammack

Chapter 5 Exercises: 1, 3, 5, 16, 18, 20.
L22 Friday October 18
Techniques of proof continued: Proof by contradiction. Hammack Chapter 6 HW 7 DUE

Solution to 3.10.2

Solution to 3.10.3



HW8a

Hammack

Chapter 6 Exercises: 2-7.




L23 Monday October 21 Techniques of proof continued: Proving non-conditional statements. Hammack Chapter 7 HW8b

Hammack

Chapter 7 Exercises: 16-21.
L24 Wednesday October 23 Techniques of proof continued: Proofs involving sets, disproof. Hammack Chapter 8 and Chapter 9 HW8c

Chapter 8 Exercises: 2, 6, 10.

Chapter 9 Exercises: 2, 4, 6.
L25 Friday October 25
Review:
Homework review

HW 8 DUE

Solution to 7.20

Solution to 8.10




L26 Monday October 28
Techniques of proof continued: Proof by induction. Hammack Chapter 10 HW9a

Hammack

Chapter 10 Exercises: 1-6.
L27 Wednesday October 30 Review:
General review


Friday November 1 Review:
Review practice exam
Practice exam and solutions.





L28 Monday November 4
MIDTERM II   MIDTERM II
L29 Wednesday November 6
Relations: Reflexive, symmetric, transitive
Hammack Chapter 11 Sections 11.1-2
HW9b

Hammack

Section 11.1 Exercises: 2, 6, 10.

Section 11.2 Exercises: 2, 5, 12.
L30 Friday November 8
Techniques of proof continued: Proof by induction continued.
HW 9 DUE

Solution to 10.1

Solution to
11.2.2
 



HW10a

Hammack

Chapter 10 Exercises: 19-24.




L31 Monday November 11
Relations continued: Equivalence relations, equivalence classes and partitions.  Hammack Chapter 11 Sections 11.3-4 HW10b

Hammack

Section 11.3 Exercises: 2, 4, 11.

Section 11.4 Exercises: 3, 4, 6.
L32 Wednesday November 13
Review Midterm II   HW10c

Hammack

Chapter 10 Exercises: 7-12.
L33 Friday November 15
Relations continued: Equivalence relations, equivalence classes and partitions, continued. Hammack Chapter 11 Sections 11.3-4 HW 10 DUE

Solution to 11.3.4

Solution to 11.4.4



HW 11a

Cancelled




L34 Monday November 18 Relations continued: Integers modulo n, relations between sets. Hammack Chapter 11 Sections 11.5-6 HW11b

Hammack

Section 11.5 Exercises: 1, 2, 4, 5, 6, 7.
L35 Wednesday November 20
Functions and maps: Introduction. (We use the term "map" whereas the book uses the term "function".  We use the term "source" whereas the book uses the term "domain".  We use the term "target" whereas the book uses the term "codomain".) Hammack Chapter 12 Sections 12.1-3 HW11c

Hammack

Section 12.1 Exercises: 4, 6.

Section 12.2 Exercises: 5, 10.

Section 12.3 Exercises: 1, 2.
L36 Friday November 22
Functions and maps continued: Composition, image, pre-image, injective, surjective, bijective, inverse. Hammack Chapter 12 Sections 12.4-6 HW 11 DUE

Solution to 11.5.6

Solution to 12.2.10



HW 12a

Hammack

Section 12.4 Exercises: 2, 6, 10.

Section 12.5 Exercises: 2, 8, 9.




 November 25--29 THANKSGIVING BREAK
NO CLASS
THANKSGIVING BREAK




L37 Monday December 2
Functions and maps continued: Composition, image, pre-image, injective, surjective, bijective, inverse, continued. Hammack Chapter 12 Sections 12.4-6 HW12b

Hammack

Section 12.6 Exercises: 1, 3, 5, 6, 9, 10.
L38 Wednesday December 4 Functions and maps continued: Further topics.

L39 Friday December 6
Review:
Homework review

HW 12 DUE




L40 Monday December 9
Review:
General review


L41 Wednesday December 11 Review:
Review practice exam
Practice exam and solutions to be posted.

Friday December 13 READING DAY
NO CLASS
NO CLASS




Sunday December 15
FINAL EXAM
Section 002
7:30 PM -- 10:00 PM
Section 003 1:30 PM -- 4:00 PM
(Lecture Room)

FINAL EXAM

I strongly encourage everyone to use LaTeX for typing homework.  If you have a mac, one possible easy way to get started is with texshop; download the MacTex.pkg package. If you are using linux, there are a number of other possible ways to go, using emacs, ghostview, etc. If you are using windows, you're on your own, but I'm sure there's something online.  This site can help you find LaTeX symbols by drawing: http://detexify.kirelabs.org/classify.html.  You may also want to try https://cocalc.com (formerly https://cloud.sagemath.com/) or https://www.overleaf.com (formerly https://www.sharelatex.com/) for a cloud version.