fallacy

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fallacy,

in logic, a term used to characterize an invalid argument. Strictly speaking, it refers only to the transition from a set of premises to a conclusion, and is distinguished from falsity, a value attributed to a single statement. The laws of syllogisms were systematically elaborated by Aristotle, and for an argument to be valid, it must adhere to all the laws; to be fallacious, it need only break one (see syllogismsyllogism,
a mode of argument that forms the core of the body of Western logical thought. Aristotle defined syllogistic logic, and his formulations were thought to be the final word in logic; they underwent only minor revisions in the subsequent 2,200 years.
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). The term fallacy has come to be used in a somewhat wider sense than the purely formal one. Informal fallacies are said to occur when statements are ambiguous or vague as to the logical form they represent, or when a multiplicity of meaning is present and the validity of the argument depends on switching meanings of a word or a phrase in midstream.

fallacy

Logic an error in reasoning that renders an argument logically invalid
References in periodicals archive ?
Politicians/Leaders in times of war, in order to shape public opinion and to block criticism, present fallacious arguments.
Fallacious arguments are not to be disregarded only because they have been found, over time, to lead to bad decisions but also because, fundamentally, they work by violating implicit norms of rational argument and, thus, short-circuit the process of rational critical debate.
Other fallacious arguments are that the WTO discussions involve "complex economic issues" and "affords protection against bullying by the wealthy.
That is why getting someone to believe a fallacious argument is known as playing him or her for a fool.
Instead, lawmakers are letting themselves be distracted by the fallacious argument that to support the troops, the Congress has to provide whatever money President Bush demands.
I was shocked and dismayed to hear a skeptic use a logically fallacious argument such as slippery slope.
Considering these facts among others, we arrive at the conclusion that the fallacious argument for the supposed "Jewish guilt" for the crucifixion of Jesus is untenable and should be regarded as polemical in nature and without historical foundation or moral justification.
But this is a fallacious argument because it assumes that Saddam was comparable to Hitler in scope, power, means, and ambition.
Although a fallacious argument, (16) it is nonetheless an argument: it offers a conclusion and appeals to reasons.
Instead of addressing these critical questions, Cash makes a fallacious argument.
Christofidou focuses on the claim that Rene Descartes based his dualism on a fallacious argument found in the "Discourse" Part IV, which involves a move from what he can or cannot doubt to a metaphysical conclusion.
they forward the fallacious argument that she owned 'an expansive