(April 17, 2012 at 10:55 pm)mediamogul Wrote: Wiki:
In logic and rhetoric, a fallacy is usually an improper argumentation in reasoning often resulting in a misconception or presumption. Literally, a fallacy is "an error in reasoning that renders an argument logically invalid".
Using the is-ought gap in an argument is a fallacy given this definition. It is an error in reasoning which assumes a connection between the way things are and the way they ought to be. Basing an argument on the premise is a fallacy. It's certainly not as blatant or as egregious as many other fallacies.
I think I misunderstood you there. I thought you were calling Hume's law a fallacy rather than a fallacy-catcher.