Venn Validity for Categorical Syllogisms

Read section 2.17 on Venn diagrams (p. 128-138), which will help you use Venn diagrams to test the validity of whole categorical syllogisms, rather than only categorical inferences. Read the section and identify the categories in every statement of the syllogisms as you go, making your own Venn diagrams to test the validity, as directed.

Complete exercise 21, checking your validity answers against the key on pages 225-226.