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Denying The Antecedent

December 12th, 2009

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Denying The Antecedent

classification : formal – fallacy of propositional Logic

Arguments of this form do not give good reason to establish their conclusions, even if their premises are true.


When a premise of an argument denies the truth of the antecedent of a conditional premise, then concludes by denying the truth of the conditional premises’ consequent.

Other Names

Same Category: Affirming the Consequent

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Categories: Logic