## Exam III

Categorical Propsitions and the Square of Opposition

### Study Guide

### Vocabulary:

- Categorical Proposition
- subject term
- predicate term
- quality
- quantity
- distribution
- copula
- universal proposition
- particular proposition
- Venn Diagram
- Square of Opposition
- immediate inference
- existential fallacy
- Contrary
- Subcontrary
- Subalternation
- Contradiction
- Illicit Contrary
- Illicit Subcontrary
- Illicit Subalternation
- Conditional Validity

### Things to Know:

- Are you prepared to identify the subject, predicate, quality, quantity, and distribution
of categorical propositions?
- Can you identify the difference between Universal and Particular propositions?
- Can you identify the difference between affirmative and negative propsitions?
- Do you know the vowels that represent the four Categorical Propositions?
- Can you use Venn Diagrams to illustrate the four Categorical Propositions?
- Can you translate ordinary statements into Categorical form?
- Do you know how to make immediate inferences based on Aristotle’s Square of Opposition?
- Do you know how to test an argument for validity using immediate inference?

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