Does anyone have a simple, easily understood definition of "logical fallacy" that can be used to explain the concept to people who have never heard of it before?
I was trying to explain the idea to a friend a few days ago but since I didn't have a definition I had to show her www.yourlogicalfallacyis.com. She understood the concept quickly, but it would be much more reliable and eloquent to actually define it.
I don't think this is so simple to explain, because to really understand logical fallacies you need to understand what a proof is. Not a lot of people understand what a proof is.