Skip to Main Content


Online and Print Resources for Philosophy

Logic 101

Fallacy Files Glossary

Glossary of logical terms used in the Fallacy Files blog.


Oxford Logic Index

Oxford University Philosophy Department index of logical terminology

Taxonomy Tree Diagram of Fallacies

From the Fallacy Files blog; a tree diagram taxonomy of formal and informal fallacies and in-depth treatment of each

Categorical Syllogisms: A Complete List

List of all 256 categorical syllogisms noting the validity, mood and figure of each

Logic Exercises and Tutorials

The Power of Logic Logo Graphic

Interactive exercises on validity, fallacies, truth tables and more.  companion to the Power of Logic textbook but is applicable to students studying any introductory logic textbook.

Introduction to Logic Logo Graphic

Oxford University Philosophy's collection of tutorials and exercises on basic logical concepts