About This Book

This textbook was created for the PHILO 1120: Logic course at the College of DuPage with funding from the OER Faculty Support Grant Program.

Copyright © John Santiago 2024. This work is licensed under a Creative Commons Attribution-Non-Commercial 4.0 (CC BY-NC 4.0) License, except where otherwise noted.

Content for this textbook was adapted from the following open educational resources:

A Concise Introduction to Logic by Craig DeLancey is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

Thinking Well : A Creative Commons Logic and Critical Thinking Textbook Edition 4.0 by Andrew Lavin is licensed under a Creative Commons Attribution 4.0 International License.

Fundamental Methods of Logic by Matthew Knachel is licensed under a Creative Commons Attribution 4.0 International License.

Bruce Thompson’s Fallacy Page by Bruce Thompson. This material resides in the public domain.

Introduction to Logic and Critical Thinking by Matthew J. Van Cleave is licensed under a Creative Commons Attribution 4.0 International License.

Cover Image: “Trail, Foliage, Woods image” by Kaneori is free for use under the Pixabay Content License.