7.1 Review of Prior Modules 1-6
This submodule provides a review of the topics covered earlier, including: Intellectual Virtues, Fallacies, Symbolization, Truth Tables, Rules of Inference, Venn Diagrams, and Categorical Syllogisms.
Table of Contents
7.1.1 Review: Intellectual Virtues

A reasoner is called ‘virtuous’ in the sense that an excellent musician is called a ‘virtuoso’. From left: Sergei Rachmaninoff, Antonio Vivaldi, Yo-Yo Ma, Charles-Valentin Alkan Bottom Row – From left: Krystian Zimerman, Arthur Rubinstein, Jorge Bolet, Valentina Lisitsa.
7.1.2 Review: Fallacies

Fallacies are a longstanding custom.
7.1.3 Review: Symbolizing

Photograph of C. S. Peirce (1839-1914), an early developer of symbolic logic.
7.1.4 Review: Truth Tables

Photo of Ludwig Wittgenstein, who popularized the truth table in his Tractatus (1921).
7.1.5 Review: Rules of Inference

Statue of Theophrastus, who articulated the rule of Modus Ponens (371 – 287 BCE)
7.1.6 Review: Venn Diagrams

Lewis Carroll, author of Alice in Wonderland, also wrote a textbook on Symbolic Logic.
7.1.7 Review: Categorical Syllogisms

Drawing of Abu Nasr Al-Farabi (872-950), a philosopher who worked on categorical logic.
Submodule 7.1 Quiz
Licenses and Attributions
Key Sources:
- Watson, Jeffrey (2019). Introduction to Logic. Licensed under: (CC BY-SA).
Next Page: 7.2 Three Types of Conditionals