| The Philosophy Gym | November 25, 2003 |
| On Preserving | October 30, 2010 |
| The New Dialectic | July 11, 1998 |
| Following the Rules | October 30, 2008 |
| By Parallel Reasoning | March 17, 2010 |
| Set Theory | May 12, 2005 |
| The Genealogy of Disjunction | May 1, 1982 |
| Wittgenstein, Finitism, and the Foundations of Mathematics | December 1, 1998 |
| Logic on the Track of Social Change | November 1, 1995 |
| There Are Two Errors in the the Title of This Book, Revised and Expanded (Again) | October 30, 2011 |
| The Logic of Hegel's 'Logic' | March 28, 2006 |
| Logical Options | March 30, 2001 |
| Introducing Symbolic Logic | May 14, 2004 |
| Essentials of Symbolic Logic, third edition | March 17, 2008 |
| Essentials of Symbolic Logic | December 10, 1998 |
| Critical Thinking, fourth edition | August 31, 2004 |
| Mathematics and the Roots of Postmodern Thought | July 15, 2001 |
| Natural Deduction | May 25, 2011 |
| Proof and Consequence | June 29, 2006 |
| Scientific Thinking | March 31, 1997 |
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