Chapter 11 Informal Fallacies 1: Language, Relevance, Authority Invitation to Critical Thinking...

Chapter 11Chapter 11

Informal Fallacies 1: Language, Informal Fallacies 1: Language, Relevance, AuthorityRelevance, Authority

www.criticalthinking1ce.nelson.comwww.criticalthinking1ce.nelson.com

Invitation to Critical ThinkingInvitation to Critical ThinkingFirst Canadian EditionFirst Canadian Edition

Joel RudinowJoel RudinowVincent E. BarryVincent E. Barry

Mark LetteriMark Letteri

© 2008 by Nelson, a division of Thomson Canada Limited© 2008 by Nelson, a division of Thomson Canada Limited 11-11-22

Overview of FallaciesOverview of Fallacies

Fallacies of LanguageFallacies of Language Fallacies of RelevanceFallacies of Relevance Fallacious Appeals to AuthorityFallacious Appeals to Authority


Fallacies of LanguageFallacies of Language

Problematic Ambiguity:Problematic Ambiguity: Informal Fallacy of Problematic Informal Fallacy of Problematic

EquivocationEquivocation Informal Fallacy of AmphiboleInformal Fallacy of Amphibole Informal Fallacy of False ImplicationInformal Fallacy of False Implication Informal Fallacy of CompositionInformal Fallacy of Composition Informal Fallacy of DivisionInformal Fallacy of Division


Problematic Vagueness:Problematic Vagueness: In argumentIn argument In advertising:In advertising:

PufferyPuffery Hyperbole or hypeHyperbole or hype Weasel wordsWeasel words



Informal Fallacy of Classification: Informal Fallacy of Classification: DenotationDenotationInformal Fallacy of Loaded Language:Informal Fallacy of Loaded Language: Connotation and the Informal Fallacy of Connotation and the Informal Fallacy of

Loaded LanguageLoaded Language Euphemism Euphemism DysphemismDysphemism Informal Fallacy of Rhetorical QuestionInformal Fallacy of Rhetorical Question



Fallacies of RelevanceFallacies of Relevance

Ad HominemAd Hominem : : Informal Fallacy of Abusive Informal Fallacy of Abusive ad hominemad hominem Informal Fallacy of Circumstantial Informal Fallacy of Circumstantial ad ad

hominemhominem Informal Fallacy of Guilt by AssociationInformal Fallacy of Guilt by Association Informal Fallacy of Poisoning the Well Informal Fallacy of Poisoning the Well Informal Fallacy of Genetic AppealInformal Fallacy of Genetic Appeal


Informal Fallacy of ProvincialismInformal Fallacy of Provincialism Informal Fallacy of Appeal to TraditionInformal Fallacy of Appeal to Tradition Informal Fallacy of Appeal to PopularityInformal Fallacy of Appeal to Popularity Informal Fallacy of Appeal to NoveltyInformal Fallacy of Appeal to Novelty Informal Fallacy of Guilt by AssociationInformal Fallacy of Guilt by Association PositioningPositioning

Provincialism, Tradition, Popularity, Provincialism, Tradition, Popularity, Novelty, and PositioningNovelty, and Positioning


Informal Fallacy of Appeal to AngerInformal Fallacy of Appeal to Anger Informal Fallacy of Appeal to FearInformal Fallacy of Appeal to Fear Informal Fallacy of Appeal to PityInformal Fallacy of Appeal to Pity

Fallacious Appeal to EmotionFallacious Appeal to Emotion


Red HerringRed Herring Straw PersonStraw Person Informal Fallacy of Two WrongsInformal Fallacy of Two Wrongs Informal Fallacy of Common PracticeInformal Fallacy of Common Practice

Diversionary TacticsDiversionary Tactics


Fallacious Appeals to AuthorityFallacious Appeals to Authority

Appeals to Invincible AuthorityAppeals to Invincible Authority Informal Fallacy of Appeal to Informal Fallacy of Appeal to

Unidentified AuthorityUnidentified Authority Informal Fallacy of Appeal to Irrelevant Informal Fallacy of Appeal to Irrelevant

AuthorityAuthority Informal Fallacy of Division of Expert Informal Fallacy of Division of Expert

OpinionOpinion Conflict of InterestConflict of Interest

Chapter 11 Informal Fallacies 1: Language, Relevance, Authority Invitation to Critical Thinking...

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