Creating Your Portfolio

Due: Monday, June 2, in class
(No late work accepted)

This assignment is best treated as an ongoing record of your logical development in this course. Through it, you will record various aspects of "pure" and applied logic, as well as some of your own applications of what you have learned. Each module will have its own requirements, as described below.

Your portfolio should be submitted in class, as a compilation of your work. It can be submitted in the following forms:

1. Electronically, as a (clearly created and organized) Powerpoint or other web-enabled presentation project

2.Physically, as a (clearly created and organized) set of print pages


1. With the exception of the proofs mentioned in Modules Two and Three (respectively, #4 and #3), no elements of your portfolio may come from examples and other materials provided in our text, in the Thomson Now website, or from other websites devoted to logical analysis and/or exercises.

2. The best way to complete this assignment is to build your portfolio as we are working through the various Modules, and I strongly encourage you to do so. You can always ask me at any time if you are "on the right track."

Portfolio Requirements

Module One - Argument Basics - 18 points

For this exercise, you should choose an issue that you would enjoy using throughout all the exercises below. Be sure that you understand the difference between a topic and an issue before you select your issue. This issue should be one related to everyday life or popular culture, or related to a philosophical issue in which you are interested. Then:

1. present your issue as a brief paragraph explaining why it's an issue (3 pts)

2. make a claim of your own devising about this issue, and offer an argument, as defined by our text, for your claim. (3 pts)

3. change your argument in #1 from deductive to inductive, or vice vera depending on the type of argument you first offered. (3 pts)

4. create two different kinds of examples of two non-argument passages about your same claim. (3 pts each; 6 total)

5. show your understanding of the difference between validity/strength and soundness/cogency by creating two arguments about your same claim, as directed below in a. and b.. More "realistic" examples will be awarded more points. (3 pts each; 6 total)

a. a valid but unsound argument

b. a cogent argument (add any comments about the content of the argument that you feel are necessary to support your claim that the argument is cogent)

Module Two - Propositional Logic - 32 pts

1. Select four "ordinary language"claims * and translate them into propositional form. Simple statements will receive 1/2 points at most; more complex compound statements will be awarded accordingly.

* These claims should come from popular sources such as print or online news sources or specialized popular cultural sources. You may also select ordinary languague claims from academic sources, if these are not related to learning logic. That is, you may select statements from your various texts for other classes, or from classic philosophical readings; you may not find your material in logic textbooks or websites the present logical concepts/exercises directly.

Provide both the original statement in enough of it's original context to make sense of the statement, and the statement's symbolic propositional form. 2 each; 8 pts
Note: if you think your symbols might not be clear, provide a legend.

2. Select four "ordinary language" propositional argments and present them in both ordinary language form and symbolic form. Again, these arguments should come from similar sources as described in 1. above, and you should provide both the original version of these arguments and the arguments' symbolic form. At least one of these arguments should be sound, and one should be unsound. (3 each; 12 total)
Note: if you think your symbols might not be clear, provide a legend.

3. For two of the "ordinary language" propositional arguments selected for #2 above (choose one sound and one unsound argument), demonstrate their logical status through applying propositional logic analysis tools. (4 each; 8 total)

4. Record a deduction for Propositional Logic that you have created that highlights your logical skills. You may not include deductions that we have done together in class or as homeworks, but you may provide a deduction from our text/online website. Be sure to include any translations and all justifications in your deduction. (4 pts)

Module Three - Categorical Logic - 20 pts

1. Select four "ordinary language" categorical argments and present them in both their original form and their symbolic form. These claims should come from the same kind of sources described in Module Two, #1. At least one of these argument should be sound, and at least one should be unsound. (3 each; 12 total)
Note: if you think your symbols might not be clear, provide a legend.

2. Choose one valid and one invalid argument (these can come from #2 above, or from other sources. Demonstrate validity through both Venn Diagrams and the rules test for categorical syllogisms. (4 pts each; 8 total)

Module Four - Summary - 10 points

1. Find and analyze a brief (1 - 2 paragraph) piece of argumentative writing, such as an editorial in a newspaper or magazine (on- or off-line). Your analysis should include:

a. an identification of the thesis or conclusion (2), and
b. an evaluation of the logical structure of the argument, using the tools of either propositional or categorical logic (4).
c. This analysis, and your comments about the content of the argument, should support your claim that the argument is or is not acceptable (4).