St. Louis Community College
Florissant Valley

Ana Coelho


St. Louis Community College at Florissant Valley

PHILOSOPHY 102
Introduction to Logic

3 credits
Section 502 11-12:15 TTH

Instructor: Ana P. Coelho

Office: Humanities Building 133, (314) 595-2292 or users.stlcc.edu/acoelho

Office Hours:

  • M W 8:30 - 9:00 / 12:00 noon - 2:00
  • TH 2:00 - 4:00
  • F 12:00 - 3:00

Text: R. M. Johnson, Fundamentals of Reasoning. Fourth Edition

Catalogue Course Description: An introduction to the methods for critically evaluating reasoning and constructing valid arguments. The course may include the techniques of both traditional (syllogistic) logic and symbolic logic. Informal logic (language, definition, and fallacies) may also be covered.

Phil 102 is an introduction to the systematic analysis and construction of arguments. This class is designed to have you practice skills that will make you a better thinker ñ better at recognizing and assessing arguments, and better at articulating and defending your own views.

Course Goals: When you have mastered the material covered in this class, you will:

  • Recognize arguments and identify their premises and conclusion.
  • Translate arguments in ordinary English into logical symbolism.
  • Identify the logical structure of arguments.
  • Establish whether arguments are valid or invalid.
  • ·Identify some common fallacies.

Grading Procedure: Two major tests, seven quizzes, and homework determine your grade in this course. I drop the two lowest quizzes. Each of the following is worth a third of your grade: the sum of the five highest quizzes, Test I, and Test II. Failure to have homework ready on days that I collect homework will result in loss of points towards you final grade. There are no make-up tests in this class.

The following grading scale will be used:

90% or above A Superior
80 - 89% B Good
70 - 79% C Average
60 - 69% D Below Average
59% or below F  

NB Success in this class requires sustained reading and practice. The completion of homework assignments and the practicing of skills (by doing relevant exercises in the textbook and in the website created for this class) are necessary for performing well in quizzes and tests.

Attendance Policy: I expect each student to attend all scheduled class meetings. However, merely attending class will result in neither a passing grade nor extra- credit. Should you miss class, it is your responsibility to make up the material missed by reading the appropriate pages in the textbook as outlined in the syllabus and doing whatever homework was assigned.

Accommodations can be arranged for any student registered with the access office. Please see me as soon as possible so that we can make appropriate arrangements.

Honors contracts are strongly encouraged in this class.

The following is a tentative list of material to be covered weekly. To accommodate to our needs as the semester progresses we might, on occasion, deviate from the proposed schedule. It is the responsibility of each student in the class to keep informed of any changes in the course.

January
14 Orientation to the course. Elements of Reasoning.
Statements

HOMEWORK: 1.2 - 2, 4, 6, 8,10,12,14, 16, 18, 20.
Recognizing Arguments
HOMEWORK: 1.3 - 2, 4, 6, 8, 10, 12, 14, 16, 18, 20.
  21 Diagramming arguments
HOMEWORK: 1.4 - 2, 4, 6, 8, 10,12,14,16.
Supplying missing parts: Enthymemes
HOMEWORK: 1.5 - 2, 4, 6, 8, 10, 12, 14.
Review Questions (pp. 27-28)
  28 Good Arguments, Deductive Validity, and Inductive Strength
For the homework listed below you need only identify the conclusion of each argument
HOMEWORK: 2.3A - 2, 4, 6, 8, 10
2.3A - 12,14
2.3B - 2, 4, 6, 8, 10,12, 14.
  QUIZ - January 30
February

4 Validity and Logical form
HOMEWORK: 2.4A - 2, 4, 6, 8, 10, 12, 14.
Truth, Validity and Good Arguments
HOMEWORK: 2.5 - 2, 4, 6.
Review Questions (pp.48 -49)
QUIZ - February 6
11 Statements and Operators. Simple and Compound
Statements.

HOMEWORK: 5.4 - 2, 4, 6, 8, 10, 12, 14, 16, 18, 20.
Grouping and the Scope of Operators.

HOMEWORK: 5.5 - 2, 4, 6, 8, 10, 12, 14, 16.
QUIZ - February 13
18 Special Cases for Translation
HOMEWORK: 5.6 - 16, 18, 20, 22, 24, 26, 28,30, 32.
The Truth-functions.
HOMEWORK: 5.8 - all
5.8B - 2, 4, 6, 8, 10, 12.
25 Constructing Truth-Tables
HOMEWORK: 5.8C - 2, 4, 6, 8, 10.
Review Questions (p. 161)
Truth -Tables for Evaluating Arguments
HOMEWORK: 6.1 - 2, 4, 6, 8, 10, 12.
March
4 Indirect Truth-Tables
HOMEWORK: 6.2 - 2, 4, 6, 8, 10.
Statements and Relations
HOMEWORK: 6.3A - 2, 4, 6, 8
6.3B - 2, 4, 6, 8, 10
Review Questions (p.178)
QUIZ - March 6
18 The Rules of Inference: Group I
HOMEWORK: 7.2 - all
7.2B - 6, 8, 10.
The Rules of Inference: Group II
HOMEWORK: 7.3A - all
7.3B - 2, 4, 6, 8, 10.
TEST I - March 20
24 Equivalencies
HOMEWORK: 7.4A - 2, 4, 6, 8, 10, 12.
7.4B - 2, 4, 6, 8, 10, 12.
7.4C - all
April
1

Categorical Form. Categories and Reasoning. The Four Categorical Statements
HOMEWORK: 3.3A - 2, 4, 6, 8, 10.
3.3B - 2, 4, 6, 8, 10.
3.3C - 2, 4, 6, 8, 10.
Venn Diagrams
HOMEWORK: 3.4A - 8, 10, 12, 14, 16, 18, 20.
3.4B - all
Recognizing Simple Inferences
HOMEWORK: 3.5 - 2, 4, 6, 8, 10.

QUIZ - April 3

8

The Squares of Opposition. The Traditional Square of Opposition. Inferences on the Traditional Square.
HOMEWORK: 3.6A - 2, 4, 6, 8, 10, 12.
3.6B - 2, 4, 6, 8, 10.
The Modern Square of Opposition
HOMEWORK: 3.6C - 2, 4, 6, 8, 10.
3.6D - 2, 4, 6, 8, 10
LAST DAY TO WITHDRAW WITH A GRADE OF 'W' - April 11


15 The Operations. Conversion. Obversion. Contraposition.
HOMEWORK: 3.7A - 2, 4, 6, 8, 10, 12, 14
3.7B - 2, 4, 6, 8, 10, 12
QUIZ - April 17
22
Translating into Categorical Form
HOMEWORK: 4.2A - 2, 4, 6, 8, 10
The Categorical Syllogism
HOMEWORK: Handout
QUIZ - April 24
29 Testing Validity with Venn Diagrams
HOMEWORK: 4.4A - all
4.4B - all
Making an Existential assumption
HOMEWORK: 4.4C - 2, 4, 6, 8, 10
QUIZ - May 1st
May

6 Rules for testing Syllogisms
HOMEWORK: handout
TEST II - May 8


Score on Quiz:

1_____
2_____
3_____
4_____
5_____
6_____
7_____


Total of the 7 quizzes _____

Subtract sum of two lowest quizzes _____

Total of 5 highest quizzes = _____

Score on test I _____

Score on test II_____

Total of 5 highest quizzes _____

Total divided by 3= _______

Homeworks missed ________


Error processing SSI file
Revised December 2, 2002