The Logical Structure of Arguments

1
The Logical Structure of Arguments

• September 15, 2004
• CS 4001B
• Fall 2004

2
Logical Structure?

• Identify the claim, stated reason, and unstated
  assumption that complete each of the following
  enthymemic arguments
• Violent video games should be illegal because
  they are harmful to children.
• Cell phones should not be used while driving a
  car because it is dangerous.

3
Toulmins Schema

• Warrant unstated assumptions
• Grounds evidence you use to support your
  because clause (your stated reason)
• Backing the argument that supports the warrant

4
Toulmins Schema

• Use Toulmins schema to analyze these arguments
• Violent video games should be illegal because
  they are harmful to children.
• Cell phones should not be used while driving a
  car because it is dangerous.

5
Audience-Based Reasoning

• Audience Parents
• Argue that video games should not be illegal