Ah, nothing like a little logical paradox for Christmas. Today we will look at how to make a valid argument—that disagrees with itself and makes no sense. Dive in to the paradox of entailment. When ...

Yuri Arcurs peopleimages.com / Getty Images/iStockphoto When I was in college, I remember naively signing up for a course called “Introduction to Logic.” It turned out to be one of the greatest ...

For regulars at Ars Technica, the forums are as much a part of the site’s identity as the articles. And where there are forums, there are flame wars. The BattleFront is infamous for its contentious ...

This week’s post is the first in a series that will provide you with a complete overview of LSAT content and the basic skills you will need to perform your best on it. This first installment will ...

Solutions are available by request for course instructors and the self-taught. These documents are intended for the spring 2024 version of PHI 201, Introductory Logic. However, they will be fine-tuned ...

Patent prosecution involves one side arguing for, and another side arguing against, the validity of claims in a patent application. This takes the form of a written discourse, in which an Examiner for ...

Re-printed here with the permission of the author. One of our members recently posted a link to a great website, Fallacy Files, on our facebook wall. I did some browsing, and stumbled upon a modal ...

Using Aristotle's dialectic to define Aristotle's dialectic. Dialectic, unlike logic, is concerned with particular individuals with whom we are engaged with in argument. The argument proceeds by ...

Arguments are attempts to persuade by providing reasons (or premises or propositions) in support of a particular claim (or conclusion). In a deductive or ‘truth-preserving’ argument, the conclusion ...

Add Yahoo as a preferred source to see more of our stories on Google. This week's post is the first in a series that will provide you with a complete overview of LSAT content and the basic skills you ...