Logical fallacies          Deceptive or Clueless? With Special Help From Flickr.com
What is a Fallacy?                 An error in              reasoning that                 obscures or                misl...
StrawmanFallacy
Attack theweakestargument (evenif it isn’trepresentative)
I never lose when I wear my       lucky headbandPost Hoc
I never lose when I wear my         lucky headbandPost HocBelieving that Bhappened justbecause it happenedafter A.
When    students     started     wearing   uniforms,WASL scores    went up;  therefore,   uniforms    improveWASL scores.
Slippery Slope
One thingwill cause anotherwhich will  cause anotherand so on
Anecdotal FallacyAnecdotal Fallacy
Anecdotal FallacyDon’t Buy  that Volvo!
Either   /Or Fallacy
You’re     ...Or You’reEither        with thewith us... terrorists
AdHominem
Attacktheopponentnot theArgument
Tu Quoque                              Bill: "But you arePeter: "Based on the          wearing a leather jacketarguments I...
Hasty Generalization            "My roommate            said her            philosophy            class was            har...
“You can’t give me a   C.  I’m an A student!”Circular Argument
Gambler’s Fallacy
This time I’m due for a big game!
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Fallacies2011

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Fallacies2011

  1. 1. Logical fallacies Deceptive or Clueless? With Special Help From Flickr.com
  2. 2. What is a Fallacy? An error in reasoning that obscures or misleads the audience
  3. 3. StrawmanFallacy
  4. 4. Attack theweakestargument (evenif it isn’trepresentative)
  5. 5. I never lose when I wear my lucky headbandPost Hoc
  6. 6. I never lose when I wear my lucky headbandPost HocBelieving that Bhappened justbecause it happenedafter A.
  7. 7. When students started wearing uniforms,WASL scores went up; therefore, uniforms improveWASL scores.
  8. 8. Slippery Slope
  9. 9. One thingwill cause anotherwhich will cause anotherand so on
  10. 10. Anecdotal FallacyAnecdotal Fallacy
  11. 11. Anecdotal FallacyDon’t Buy that Volvo!
  12. 12. Either /Or Fallacy
  13. 13. You’re ...Or You’reEither with thewith us... terrorists
  14. 14. AdHominem
  15. 15. Attacktheopponentnot theArgument
  16. 16. Tu Quoque Bill: "But you arePeter: "Based on the wearing a leather jacketarguments I have presented, and you have a roastit is evident that it is beef sandwich in yourmorally wrong to use hand! How can you sayanimals for food or that using animals forclothing." food and clothing is wrong!"
  17. 17. Hasty Generalization "My roommate said her philosophy class was hard, and the one Im in is hard, too. All philosophy classes must be hard!
  18. 18. “You can’t give me a C.  I’m an A student!”Circular Argument
  19. 19. Gambler’s Fallacy
  20. 20. This time I’m due for a big game!

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