Logical fallacies
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Logical fallacies

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Logical fallacies Presentation Transcript

  • 1. Logical Fallacies Part 1
  • 2. Hasty GeneralizationA conclusion based on insufficient or unrepresentative evidence QuickTimeª and a decompressor are needed to see this picture.
  • 3. Faulty Use of Authority QuickTimeª and a decompressor are needed to see this picture.
  • 4. Post Hoc The arguer infers that because one eventfollows another event, the first event must be the cause. QuickTimeª and a decompressor are needed to see this picture.
  • 5. False Analogy Many analogies are merely descriptiveand offer no proof of the connection between the two things being compared. QuickTimeª and a decompressor are needed to see this picture.
  • 6. Ad Hominem QuickTimeª and a decompressor are needed to see this picture.
  • 7. False DilemmaAlso known as the either/or fallacy. QuickTimeª and a decompressor are needed to see this picture.
  • 8. Slippery Slope If an arguer predicts that taking a first step will lead inevitably to a second, usually undesirable step and provides no evidence.Legalization of abortion will lead to murder of the old and the physically and mentally handicapped.
  • 9. Famous Commercial Example QuickTimeª and a decompressor are needed to see this picture.