Doug's Dozen: 12 Logical Fallacies Defined!

I've noticed a lot of arguments on the Internet run aground due to unsound reasoning. This is undoubtedly the result of the recent full moon. In order to combat such irrational thinking, I present this list as a public service...

Doug's Dozen: 12 Logical Fallacies Defined!

1. Reductio ad absurdum: Argument that you can ignore a disclaimer because the print's so small it's ridiculous.

2. Ad nauseam: Argument that we should eat at Carl's Jr. even though their commercials make me vomit.

3. Ad hominem: Argument used by Ralph Kramden when he can't think of anything else to say.

4. Non-sequitur: Argument that comes out of nowhere, like, "Hey, they should make Jack and Jill 3."

5. Post hoc, ergo propter hoc: Argument that using so many words in a dead language like Latin is why the Roman empire fell.

6. Slippery slope: Argument that if it was truly dangerous, they'd have ski patrol keeping us off, not just a dumb warning sign.

7. The undistinguished middle: Argument that stomach crunches won't give me six-pack abs, so why bother?

8. Tautology: Argument that only makes sense when you get tight.

9. Special pleading: Argument for having sex with me.

10. Appeal to authority: Argument such as, "My pal the mayor wouldn't appreciate you giving me a ticket, officer."

11. False dichotomy: Argument for surgically removing any sitcom where guys in drag pretend to be lesbians.

12. Straw man: Argument that there's any way in hell Dorothy would miss him more than the cowardly lion.

See more Doug's Dozen lists at

testPromoTitleReplace testPromoDekReplace Join HuffPost Today! No thanks.