Analyzing Arguments (PowerPoint)

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					Analyzing Arguments
        Diagramming Arguments
•   Circle Premise or Conclusion indicators
•   Number the statements
•   Arrange Numbers with premises
•   Omit logically irrelevant statements
•   Create flowchart
 Independent vs. Linked Support
• Independent Support:
  – Two premises are independent when neither
    premise would provide less support if the other
    was omitted.
• Linked Support:
  – Two premises are linked when the omission of one
    would cancel or reduce the amount of support
 Independent vs. Linked Support
• Independent Support
• Linked Support

  Independent Support   Linked Support
                                         1
      2    3   4         1    +   2
                                         2

           4                  3
                                         4
         Tips on Diagramming
• Find main conclusion first
• Premise and Conclusion indicators
• The word and
•   Conditional & Disjunctive statements
•   Non statements
•   Irrelevant statements
•   Redundant statements
    Summarizing Long Arguments
•   Paraphrasing
•   Missing Premises and Conclusions
•   Summarizing Extended Arguments
•   Common Mistakes
                 Paraphrasing
•   Accurate
•   Clear
•   Concise
•   Charitable
  Missing Premises and Conclusions
• Faithfully interpret the arguer’s intentions
• Be Charitable
 Summarizing Extended Arguments
• Standardization
• Standard logical form
Standardize an Extended Arguments
•   Identify Main Conclusion & Major Premises
•   Omit unnecessary material
•   Number the steps
•   Missing Premises
•   Add Parenthetical justifications
            Common Mistakes
•   Incomplete sentences
•   No more than one statement per line
•   Nothing but statements
•   Nothing but premises and conclusions

				
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