'Undistributed middle' presentation slideshows

Common Logical Fallacies

300 views • 29 slides

Using Venn Diagrams to Test Validity

Using Venn Diagrams to Test Validity. What we are doing. To test the validity of a syllogism, you may use a Venn diagram. A Venn diagram is three intersecting circles. There are 8 sections created as a result. How to do it.

966 views • 26 slides

Rules of the Syllogism

Rules of the Syllogism. First Rule of Quality (Q1). There can be only one negative premise. No B are L. negative No S are B. Negative!! No S are L. This is a violation of Q1. 2 nd Rule of Quality.

1.28k views • 21 slides