affirming the consequent

affirming the consequent
A formal fallacy, committed by reasoning in the form:<p>If P, then Q.<p>Q.<p>Therefore, P.

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  • Affirming the consequent — Affirming the consequent, sometimes called converse error, is a formal fallacy, committed by reasoning in the form: If P, then Q. Q. Therefore, P. An argument of this form is invalid, i.e., the conclusion can be false even when statements 1 and 2 …   Wikipedia

  • affirming the consequent — Arguing invalidly that from if p then q and q, it follows that p ; e.g. arguing from ‘if she is studying mathematics then she is not studying English’ and ‘she is not studying English’ to ‘she is studying mathematics’ …   Philosophy dictionary

  • fallacy of the consequent — the logical fallacy of affirming the consequent : affirmation of the consequent …   Useful english dictionary

  • The Church —     The Church     † Catholic Encyclopedia ► The Church     The term church (Anglo Saxon, cirice, circe; Modern German, Kirche; Sw., Kyrka) is the name employed in the Teutonic languages to render the Greek ekklesia (ecclesia), the term by which… …   Catholic encyclopedia

  • Fallacy of the undistributed middle — The fallacy of the undistributed middle is a logical fallacy that is committed when the middle term in a categorical syllogism isn t distributed. It is thus a syllogistic fallacy. Pattern The fallacy of the undistributed middle takes the… …   Wikipedia

  • Denying the antecedent — Denying the antecedent, sometimes also called inverse error, is a formal fallacy, committed by reasoning in the form: If P, then Q. Not P. Therefore, not Q. Arguments of this form are invalid. Informally, this means that arguments of this form do …   Wikipedia

  • The Blessed Trinity —     The Blessed Trinity     † Catholic Encyclopedia ► The Blessed Trinity     This article is divided as follows:          I. Dogma of the Trinity;     II. Proof of the Doctrine from Scripture;     III. Proof of the Doctrine from Tradition;… …   Catholic encyclopedia

  • Begging the question — Bust of Aristotle, whose Prior Analytics contained an early discussion of this fallacy. Begging the question (or petitio principii, assuming the initial point ) is a type of logical fallacy in which the proposition to be proven is assumed… …   Wikipedia

  • History of the British Labour Party — This is about the history of the British Labour Party. For information about the wider history of British socialism see History of socialism in Great Britain. For more detailed information about the present Labour government see Current Labour… …   Wikipedia

  • Outline of logic — The following outline is provided as an overview of and topical guide to logic: Logic – formal science of using reason, considered a branch of both philosophy and mathematics. Logic investigates and classifies the structure of statements and… …   Wikipedia

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