Saturday, February 20, 2010

My Ubiquitous Software Tools (free or low cost)

Over in the sidebar is a link to some current free or low cost software tools I use. I chose them because they generally do what I need and most of what I want and don't limit me to an operating system or a place. I can generally use them anywhere anytime, no muss, no fuss.

Wednesday, February 10, 2010

Tuesday, January 26, 2010

The Cycle of Action

The Cycle of Action
Adapted from pg. 20 of "Turning Numbers Into Knowledge", by Johnathan G. Koomey, and from "The Design of Everyday Things", by Norman, See it at Amazon
 





Monday, January 25, 2010

Arguments from Popular Opinion Scheme (Ad Populum)

aka, the Ad Populum Argument Scheme
* If a large majority in a particular reference group G accepts A as true (false), then there exists a defeasible presumption in favor of (against) A
* A large majority accepts A as true (false).
* Therefore, there exists a presumption in favor of (against) A

This form of the argument might use polls or statistics meant to measure public opinion. This argument may or may not accurately reflect a real world state, but the fact that so many people commit to it, gives it a presumption that it does accurately reflect a real world state. (Walton, Reed, Macagno. 125)

Critical Questions regarding the argument scheme.
1. Is it really the case that a large majority of the particular reference group accepts A as true?
2. Is there any other available evidence that would support the assumption that A is false?
3. What reason is there for thinking that the view of this large majority is likely to be right?

In order to determine if it does accurately reflect a real world state, whatever claim is being made must be verified.  Data gathering must be done with an emphasis on data about what its causes are, where it came from, what it interacts with, what it depends on and what it causes. 

Variant of the Basic Form of Ad Populum Argument Scheme
1. Position to Know
2. Expert Opinion
3. Deliberation
4. Moral Justification (Excuse subtype)
5. Moral Justification
6. Common Folks
7. Rhetoric of Belonging
8. Snob Appeal
9. Appeal to Vanity

Walton, Reed, Macagno. Argumentation Schemes. New York: Cambridge University Press, 2008, pgs 122-131

Bibliography


Ralph H. Johnson, J. Anthony Blair. Logical Self-Defense. New York: IDEA, 2006.

Douglas Walton, Legal Argumentation and Evidence. University Park: Pennsylvania State University Press, 2002

Walton, Reed, Macagno. Argumentation Schemes. New York: Cambridge University Press, 2008

Sunday, January 24, 2010

Diagramming Arguments for Study



On the left is a picture of a type of argument diagram.
Douglas N. Walton uses the araucaria program, but I don't use it as much as I use this type of  form mixed with flowcharting conventions by hand. I use the software sometimes, but I mostly do diagrams using the tools I already know.
Here are a couple of links to PDF Documents by Walton explaining what diagramming arguments is good for.

Araucaria as a Tool for Diagramming Arguments in Teaching and Studying Philosophy
 

Argument Visualization Tools for Corroborative Evidence

Douglas N. Waltons' site, University of Windsor
ARGUMENT VISUALIZATION SOFTWARE

Araucaria
Argunet
Automated Argument Assistance
Carneades
Compendium
Debategraph
Debatepedia
Rationale

Position to Know Ad Populum Argument Scheme

Depending on preferred classification style, it can be a subcategory of Ad Populum or a subcategory of Source-based Arguments.
Ad Populum arguments are inherently weak and prone to exploit prejudice. They are typically categorized as fallacies but in many instances they can be reasonable arguments and the best kind of evidence available to make a rational decision (Walton, Reed, Macagno. 121). 
The degree of commitment to the truth of the argument varies from person to person, however, if artifacts are available for review in support of the Ad Populum argument, they strengthen the persuasiveness of the argument, and the Ad Populum argument takes on the characteristics of another more persuasive reasoning scheme.

The type of reasoning scheme that it transitions to must be assessed with regard to all that is known about it in order to determine which scheme it has transitioned to.
Major Premise: a person a is in a position to know about things in the domain of a subject which contains proposition P.
Minor Premise: a asserts that P is true (or false).
Conclusion: P is true (or false).

Critical Questions about the argument
1. Is a in a position to know whether P is true (or false)?
2. Is a an honest (trustworthy, reliable) source?
3. Did a assert that P is true (or false)?

Reference for this example in the book Argumentation Schemes
Douglas Walton, Legal Argumentation and Evidence. University Park: Pennsylvania State University Press, 2002, p. 46.

Reference for this page in Argumentation Schemes
Walton, Reed, Macagno. Argumentation Schemes. New York: Cambridge University Press, 2008, p. 309