Stephen's Guide to the Logical Fallacies

Stephen's Guide to the Logical Fallacies ~ Undistributed Middle


Contents

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  • All Fallacies
  • The Fallacies

  • False Dilemma
  • Argument From Ignorance
  • Slippery Slope
  • Complex Question
  • Appeal to Force
  • Appeal to Pity
  • Appeal to Consequences
  • Prejudicial Language
  • Appeal to Popularity
  • Anonymous Authorities
  • Coincidental Correlation
  • Attacking the Person
  • Appeal to Authority
  • Converse Accident
  • Style Over Substance
  • Unrepresentative Sample
  • Hasty Generalization
  • False Analogy
  • Slothful Induction
  • Fallacy of Exclusion
  • Accident
  • Joint Effect
  • Genuine but Insignificant Cause
  • Wrong Direction
  • Complex Cause
  • Begging the Question
  • Irrelevant Conclusion
  • Straw Man
  • Equivocation
  • Amphiboly
  • Accent
  • Composition
  • Division
  • Affirming the Consequent
  • Denying the Antecedent
  • Inconsistency
  • Fallacy of Four Terms
  • Undistributed Middle
  • Illicit Major
  • Illicit Minor
  • Fallacy of Exclusive Premises
  • Drawing an Affirmative Conclusion From a Negative Premise
  • Existential Fallacy
  • Subverted Support
  • Non-Support
  • Untestability
  • Limited Scope
  • Limited Depth
  • Too Broad
  • Too Narrow
  • Undistributed Middle

    Category:

    Definition: Two separate categories are said to be connected because they share a common property

    Examples:

    Proof:

    The middle term in the premises of a standard form categorical syllogism never refers to all of the members of the category it describes.

    Show how each of the two categories identified in the conclusion could be separate groups even though they share a common property. Copi and Cohen: 207


    Created by Stephen Downes, Copyright 2023 CC By-NC-SA