Specious reasoning is a form of argument or analysis that relies on lies, misdirection, or misinterpreted information to make its point. Assertions made under specious reasoning often appear or are generally accepted to be true and credible. [1] Specious arguments do not rely on a lack of intelligence or knowledge in a given subject, and even published works by authors highly educated in their fields can be seen to be founded on specious reasoning at their core. [2]
Specious reasoning does not necessarily rely on malicious intent, and one could formulate a specious argument with what they see as sound logic, only to produce an idea that is flawed or factually incorrect. It is a general term that encompasses forms of logical fallacy, such as tu quoque and circular reasoning. Specious reasoning often presents a sanitised or beautified view of an issue that can make it appear less of a problem, such as downplaying the effects of climate change, and can be deceptively persuasive.
Deliberately specious reasoning can be seen as a form of sophism. [3]
The term comes from the late Middle English word meaning 'beautiful', itself coming from the Latin word 'speciosus' meaning 'fair'. [4] This highlights the common quality of specious assertions being attractive in concept and pleasant to place belief in, thereby making them more readily adopted by the layperson despite a lack of factual basis or sound logical reasoning. [1]
The Vote Leave campaign surrounding the United Kingdom European Union membership referendum of 2016 relied heavily on arguments that may now retrospectively be labelled as specious reasoning, making promises that were later established to be false or impossible to fulfill. One such promise was that emblazoned on the side of the 'Brexit red bus', which implied that by leaving the EU, the UK would be able to reserve £350 million a week sent to the union and instead direct it into funding the NHS. This was later found to have been misleading. [5] [6]
Specious arguments have historically been used to argue against change that affects culturally accepted and profitable practices; such was the case when certain medical professionals tried to warn of the dangers of smoking tobacco. [7]
A common form of specious arguing, particularly in politics, is that of the Gish gallop, a rhetorical technique which sees the user overwhelm their opponent with a high volume of arguments with no regard for their accuracy, quality, or relevance. The Gish gallop is notorious for being a poor method of debate yet a difficult method to counter and overcome for those faced by it. [8] Gish galloping is also known as proof by verbosity, and audiences can be swayed by the rapid succession of arguments and tricked into believing that the speaker must have evidence on their side. [9]
Ad hominem, short for argumentum ad hominem, refers to several types of arguments, most of which are fallacious. Typically this term refers to a rhetorical strategy where the speaker attacks the character, motive, or some other attribute of the person making an argument rather than attacking the substance of the argument itself. This avoids genuine debate by creating a personal attack as a diversion often using a totally irrelevant, but often highly charged attribute of the opponent's character or background. The most common form of this fallacy is "A" makes a claim of "fact," to which "B" asserts that "A" has a personal trait, quality or physical attribute that is repugnant thereby going entirely off-topic, and hence "B" concludes that "A" has their "fact" wrong -without ever addressing the point of the debate.
A fallacy, also known as paralogia in modern psychology, is the use of invalid or otherwise faulty reasoning in the construction of an argument that may appear to be well-reasoned if unnoticed. The term was introduced in the Western intellectual tradition by the Aristotelian De Sophisticis Elenchis.
A fact is a true datum about one or more aspects of a circumstance. Standard reference works are often used to check facts. Scientific facts are verified by repeatable careful observation or measurement by experiments or other means.
The genetic fallacy is a fallacy of irrelevance in which arguments or information are dismissed or validated based solely on their source of origin rather than their content. In other words, a claim is ignored or given credibility based on its source rather than the claim itself.
Inductive reasoning is a method of reasoning in which a general principle is derived from a body of observations. It consists of making broad generalizations based on specific observations. Inductive reasoning is distinct from deductive reasoning, where the conclusion of a deductive argument is certain given the premises are correct; in contrast, the truth of the conclusion of an inductive argument is probable, based upon the evidence given.
An etymological fallacy is an argument that a word is defined by its etymology, and that its customary usage is therefore incorrect.
The Svātantrika–Prāsaṅgika distinction is a doctrinal distinction made within Tibetan Buddhism between two stances regarding the use of logic and the meaning of conventional truth within the presentation of Madhyamaka.
Proof by assertion, sometimes informally referred to as proof by repeated assertion, is an informal fallacy in which a proposition is repeatedly restated regardless of contradiction and refutation. The proposition can sometimes be repeated until any challenges or opposition cease, letting the proponent assert it as fact, and solely due to a lack of challengers. In other cases, its repetition may be cited as evidence of its truth, in a variant of the appeal to authority or appeal to belief fallacies.
Language, Truth and Logic is a 1936 book about meaning by the philosopher Alfred Jules Ayer, in which the author defines, explains, and argues for the verification principle of logical positivism, sometimes referred to as the criterion of significance or criterion of meaning. Ayer explains how the principle of verifiability may be applied to the problems of philosophy. Language, Truth and Logic brought some of the ideas of the Vienna Circle and the logical empiricists to the attention of the English-speaking world.
Logic is the formal science of using reason and is considered a branch of both philosophy and mathematics and to a lesser extent computer science. Logic investigates and classifies the structure of statements and arguments, both through the study of formal systems of inference and the study of arguments in natural language. The scope of logic can therefore be very large, ranging from core topics such as the study of fallacies and paradoxes, to specialized analyses of reasoning such as probability, correct reasoning, and arguments involving causality. One of the aims of logic is to identify the correct and incorrect inferences. Logicians study the criteria for the evaluation of arguments.
The analytic–synthetic distinction is a semantic distinction used primarily in philosophy to distinguish between propositions that are of two types: analytic propositions and synthetic propositions. Analytic propositions are true or not true solely by virtue of their meaning, whereas synthetic propositions' truth, if any, derives from how their meaning relates to the world.
Persuasive writing is a form of written communication intended to convince or influence readers to accept a particular idea or opinion and to inspire action. A wide variety of writings, such as criticisms, reviews, reaction papers, editorials, proposals, advertisements, and brochures, utilize different persuasion techniques to influence readers. Persuasive writing can also be employed in indoctrination. It is often confused with opinion writing; however, while both may share similar themes, persuasive writing is backed by facts, whereas opinion writing is supported by emotions.
Appeal to the stone, also known as argumentum ad lapidem, is a logical fallacy that dismisses an argument as untrue or absurd. The dismissal is made by stating or reiterating that the argument is absurd, without providing further argumentation. This theory is closely tied to proof by assertion due to the lack of evidence behind the statement and its attempt to persuade without providing any evidence.
The Principle of Nonvacuous Contrast is a conceptual framework and methodological principle that holds significance within various fields such as philosophy, science, linguistics, and epistemology. This principle is fundamentally rooted in the idea that meaningful distinctions and assertions can only be formulated and comprehended when there exists a clear and discernible contrast between different concepts or entities. The principle plays a pivotal role in shaping logical reasoning, meaningful communication, and the establishment of knowledge.
Buddhist logico-epistemology is a term used in Western scholarship to describe Buddhist systems of pramāṇa-vāda and hetu-vidya. Pramāṇa-vāda is an epistemological study of the nature of knowledge; Hetu-vidya is a system of logic. These models developed in India during the 5th through 7th centuries.
The psychology of reasoning is the study of how people reason, often broadly defined as the process of drawing conclusions to inform how people solve problems and make decisions. It overlaps with psychology, philosophy, linguistics, cognitive science, artificial intelligence, logic, and probability theory.
Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the science of deductively valid inferences or logical truths. It studies how conclusions follow from premises due to the structure of arguments alone, independent of their topic and content. Informal logic is associated with informal fallacies, critical thinking, and argumentation theory. It examines arguments expressed in natural language while formal logic uses formal language. When used as a countable noun, the term "a logic" refers to a logical formal system that articulates a proof system. Logic plays a central role in many fields, such as philosophy, mathematics, computer science, and linguistics.
A tone argument is a type of ad hominem aimed at the tone of an argument instead of its factual or logical content in order to dismiss a person's argument. Ignoring the truth or falsity of a statement, a tone argument instead focuses on the emotion with which it is expressed. This is a logical fallacy because a person can be angry while still being rational. Nonetheless, a tone argument may be useful when responding to a statement that itself does not have rational content, such as an appeal to emotion.