Syllabus

Class Notes

Handouts

Assignments

Homework Solutions

Readings

Links

 

 

 

Texts

Assignments

Office Hours

Schedule

pdf syllabus

 

 

 

 

 

Syllabus

 

Course Description and Overview:

Philosophy has one technical tool: logic. Formal logic is the study of arguments and inferences, made in artificial languages designed to maximize precision. This course is a standard introduction to elementary formal logic, covering propositional logic and predicate logic, including identity theory, functions, and second-order quantification. The central goal of this course is to provide you with a technical method of deciding what follows from what.

The two main techniques we will study are translation and derivation. We will establish a formal definition of valid inference using logical operators and truth functions. We will translate sentences of English into the formal languages of propositional and predicate logic, and back. We will use a proof system to infer new claims from given ones, following prescribed rules of inference and proof strategies.

Thirty of the forty-two class meetings will be devoted to learning logical techniques. There will be seven Philosophy Fridays during which we will examine some philosophical questions about logic. Some of these questions concern the status of logic, and its relation to the rest of our knowledge. Some of these questions concern how best to construct logical systems. The remaining five classes, and the final exam period, will be used for tests. You will be asked to write one essay.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Texts

Patrick Hurley, A Concise Introduction to Logic, 10th edition, Wadsworth. The full text costs ~$130. I have ordered copies with just the sections we will use, and an appendix of interest to pre-law students. It will be available at the bookstore for $50.

Other readings and class notes here. These will be especially important for the several topics not covered in Hurley.

Other recommended sources are listed in the Course Bibliography.

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Assignments and Grading:

Your responsibilities this course include the following, with their contributions to your grade calculation in parentheses:

                          Attendance
                          Homework (8%)
                          Six Tests (72%, 12% each)
                          One four-to-six page paper (20%)

             Attendance: Classes are for your edification. It will be useful for you to come to class, but there is no direct penalty for missing class. Some students pick up on the technical material quickly. If you do miss a class, you should arrange to drop off your homework, if you have homework due to be handed in.

             Homework: Homework assignments and their due dates are listed on the schedule below. Some homework assignments are problem sets, mainly from the Hurley text; there are also seven homework handouts. Other homework assignments are readings in preparation for classes in which we will discuss the philosophy of logic.
             All students will be expected to hand in the first six problem sets, those which are due before the first exam. If you receive less than an 85% on any exam, you must hand in all problem sets which are due before the next exam. If you receive an 85% or higher on the most recent exam, you may hand in your homework, if you wish, but it will not be required. When handing in homework, make it neat and presentable. There should be no ripped or crumpled pages. Problems should be clearly delimited. Questions need not be written out fully, but solutions must be.
             Sample solutions to all homework problems are available on line. Acceptable solutions to most problems vary. We will begin most classes with time to review a few homework questions. You are expected to have completed the homework and looked at the solutions provided before the beginning of class. Come to class prepared to ask any questions about the homework that remain unanswered.
             Use the text as a reference guide. The chapter sections include excellent examples, and solutions. Read on a need-to-know basis: when you have difficulty with specific problems, read the relevant sections of the chapter. My lecture notes should also be helpful, and contain additional exercises. The homework assignments on the schedule are minimal. If you are still struggling with the material, you should do more problems.

             Tests: All six tests are mandatory. Dates for the tests are given on the schedule below. No make-ups will be allowed for missed tests. If you are unable to take a test, you must request an arrangement from me in advance. The final exam will be one more test of the same type as each of the first five tests. Be prepared: the final exam will cover the most difficult material in the course.

              You will have an opportunity, at the time of the final, to take a compensatory version of up to two of the first five tests. I will average the grade on the re-take with your original grade. If you miss a test during the term, the re-take will be averaged with a 0. Practice problems for each test will be available on the course website.

             Paper: Each student will write a short paper on a topic in logic, philosophy of logic, or the application of logic to philosophy. Seven class meetings will be devoted to such topics. All papers will require a small amount of research. Papers may be mainly expository, especially those covering technical topics. But, the best papers will philosophical, and will defend a thesis. I will suggest topics and readings through the term. Papers are due on December 3, though they may be submitted at any time during the course. More details about the papers will be distributed in class.

             The Hamilton College Honor Code will be strictly enforced

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Office Hours

             My office hours for the Fall 2010 term are 10:30am - noon, Monday through Friday. My office is in room 201 of 210 College Hill Road, which is at the northwest corner of CHR and Griffin Road.

 


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Schedule:

            

Class

Date

Topic Name

Homework to do before the next class meets

1

Friday
August 27

Arguments; Validity and Soundness

§1.1: I.1, 3, 7, 14, 20, 27
§1.4: I.1, 3, 7, 8, 10
§1.2: VI.1, 2, 4, 7, 9

2

Monday
August 30

Translation using Propositional Logic; Wffs

§6.1: I.1-11, 13-16, 21-23, 29, 30, 38, 39, 41-43
Homework Handout #1: Translating from Propositional Logic
§6.1: III.1-10
§6.2: I.1-4, 9, 10

3

Wednesday
September 1

Truth Functions

Read Goodman, “The Problem of Counterfactual Conditionals.”

4

Friday
September 3

Philosophy Friday #1: Conditionals

§6.1: I.34-37, 45, 47, 48, 50
§6.2: III.1-3, 6-11, 12, 21, 22, 24
§6.2: II.1-3, 13, 15
§6.2: IV.1-5, 11, 12

5

Monday
September 6

Truth Tables for Propositions

§6.3: I.1-4, 11, 14
§6.3: II.1, 3, 6, 11
§6.3: III.1, 9, 10

6

Wednesday
September 8

Truth Tables for Arguments

Read Searle, “Can Computers Think?
Read Frege, Preface to Begriffsschrift.

7

Friday
September 10

Philosophy Friday #2:Syntax and Semantics

§6.4: II.2, 5, 10, 17, 19
§6.4: I.1, 3, 5, 10

8

Monday
September 13

Invalidity and Inconsistency: Indirect Truth Tables

§6.5: I.3, 6, 12, 13, 15
§6.5: II.2, 5, 9

9

Wednesday
September 15

Rules of Implication I

Prepare for Test #1.

10

Friday
September 17

Test #1: Chapters 1 and 6

§7.1: III.1-3, 5, 7, 8, 14, 21, 22
§7.1: IV.1, 3, 8

11

Monday
September 20

Rules of Implication II

Homework Handout #2: Rules of Implication
§7.2: III.2, 4, 8, 12, 16, 22
§7.2: IV.1, 2, 6, 8

12

Wednesday
September 22

Rules of Replacement I

Read Quine, “Grammar.”

13

Friday
September 24

Philosophy Friday #3: Adequate Sets of Connectives

§7.3: III.6-12, 14, 18, 19, 22, 26, 32
§7.3: IV.4, 9

14

Monday
September 27

Rules of Replacement II

§7.4: III.2-5, 8, 10, 21, 24, 36, 38, 45
§7.4: IV.6, 8

15

Wednesday
September 29

Practice with Proofs

Prepare for Test #2.

16

Friday
October 1

Test #2: Derivations

 

17

Monday
October 4

Conditional Proof

§7.5: I.3, 7, 9, 11, 14, 18, 20
§7.5: II.3, 5
Note: You need not try each problem without conditional proof, though trying a few may be edifying.
§7.7: 1, 3, 5

18

Wednesday
October 6

Indirect Proof

Read Aristotle, De Interpretatione, §9.
Read Quine, “Deviant Logics.”

19

Friday
October 8

Philosophy Friday #4: Three-Valued Logics

§7.6: I.1, 2, 4, 6, 13, 15, 17
§7.6: II.2, 4
Note: You need not try each problem without indirect or conditional proof, though trying a few may be edifying.
§7.7: 2, 9, 13, 16, 18

20

Monday
October 11

More on Proofs

§7.6: I.7, 8, 11, 16, 19
§7.7: 6, 10, 14, 17, 19
Homework Handout #3: Practice Problems for Test #3

21

Wednesday
October 13

Test #3: Conditional and Indirect Methods

 

 

October 15

Fall Break

 

22

Monday
October 18

Predicate Logic, Translation I

§8.1: 2-4, 6-11, 14-19, 23-28, 35-37

23

Wednesday
October 20

Predicate Logic, Translation II

§8.1: 21, 31-33, 38-40, 42, 44-6, 50-55, 58, 60
Homework Handout #4: Translating from Pred. Logic

24

Friday
October 22

Derivations in Predicate Logic

Prepare for Test #4.

25

Monday
October 25

Test #4: Predicate Logic Translation

§8.2: I.1-3, 7-9
§8.2: II.1, 3, 4, 6

26

Wednesday
October 27

More Derivations and Changing Quantifiers

Read Tarski, “The Semantic Conception of Truth and the Foundations of Semantics.”

27

Friday
October 29

Philosophy Friday #5: Truth and Liars

§8.2: I.4, 5, 10, 12, 13
§8.2: II.5, 7, 9, 10
§8.3: I.1, 3, 7, 8, 10, 14
§8.3: II.3, 5, 9

28

Monday
November 1

Conditional and Indirect Proof, Predicate Versions

§8.4: I.1-4, 10, 12, 19, 21
§8.4: II.4, 6, 9

29

Wednesday
November 3

Semantics for Predicate Logic

Read Quine, “On What There Is.”

30

Friday
November 5

Philosophy Friday #6: Quantification and Ontological Commitment

Practice Problems for Test #5.I

31

Monday
November 8

Invalidity in Predicate Logic

§8.5: II.1, 2, 6, 10
§8.5: III.2, 4 (Use only the finite universe method.)

32

Wednesday
November 10

Translation Using Relational Predicates I

Prepare for Test #5.
Practice Problems for Test #5.II

33

Friday
November 12

Test #5: Predicate Logic Derivations and Invalidity

§8.6: I.1-4, 7-10, 13, 14, 17, 19, 20

34

Monday
November 15

Translation Using Relational Predicates II

§8.6: I.5, 6, 11, 12, 23, 24, 27, 30
Homework Handout #5: Translating from Relations

35

Wednesday
November 17

Derivations Using Relational Predicates

Read Katz, “The Problem in Twentieth-Century Philosophy.”

36

Friday
November 19

Philosophy Friday #7: Color Incompatibility

§8.6: II.2, 3, 4, 7, 9, 13, 14, 19
§8.6: III.1, 4, 8

 

Thanksgiving

Break

 

37

Monday
November 29

Translation Using Identity I

§8.7: I. 2, 3, 6, 9, 10, 13, 14, 15, 17, 18, 22, 23, 24, 25

38

Wednesday
December 1

Translation Using Identity II

§8.7: I. 28, 31, 34, 35, 37-39, 40, 42, 43, 45, 46, 47, 50
Complete paper.

39

Friday
December 3

Derivations UsingIdentity I
Papers are due.

§8.7: II.2, 3, 5, 6, 9, 11, 12, 19
§8.7: III.2, 3, 7, 8, 10, 12

40

Monday
December 6

Derivations Using Identity II

§8.7: II.7, 10, 14, 15, 17
§8.7: III.5, 13, 15

41

Wednesday
December 8

Functions

Homework Handout #6: Functions

42

Friday
December 10

Second-Order Logic

Homework Handout #7: Second-Order Quantifiers
Practice Problems for Test #6

 

Thursday
December 16
9am-noon

Test #6 (Final): Relations, Identity Theory, Functions, and Second-Order Logic

Plus, Compensatory Material


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