An irrelevant conclusion, also known as ''ignoratio elenchi'' () or missing the point, is the informal fallacy of presenting an argument that may or may not be logically valid and

sound In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the ''reception'' of such waves and their ''perception'' b ...

, but (whose conclusion) fails to address the issue in question. It falls into the broad class of

relevance Relevance is the concept of one topic being connected to another topic in a way that makes it useful to consider the second topic when considering the first. The concept of relevance is studied in many different fields, including cognitive sci ...

fallacies. The irrelevant conclusion should not be confused with

formal fallacy In philosophy, a formal fallacy, deductive fallacy, logical fallacy or non sequitur (; Latin for " tdoes not follow") is a pattern of reasoning rendered invalid by a flaw in its logical structure that can neatly be expressed in a standard logic syst ...

, an argument whose conclusion does not follow from its

premise A premise or premiss is a true or false statement that helps form the body of an argument, which logically leads to a true or false conclusion. A premise makes a declarative statement about its subject matter which enables a reader to either agre ...

s; instead, it is that despite its formal

consistency In classical deductive logic, a consistent theory is one that does not lead to a logical contradiction. The lack of contradiction can be defined in either semantic or syntactic terms. The semantic definition states that a theory is consistent ...

it is not relevant to the subject being talked about.

Overview

''Ignoratio elenchi'' is one of the fallacies identified by

Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatetic school of ph ...

in his ''

Organon The ''Organon'' ( grc, Ὄργανον, meaning "instrument, tool, organ") is the standard collection of Aristotle's six works on logical analysis and dialectic. The name ''Organon'' was given by Aristotle's followers, the Peripatetics. The six ...

''. In a broader sense he asserted that all fallacies are a form of ''ignoratio elenchi''. ● Example 1: A and B are debating as to whether criticizing indirectly has any merit in general. attempts to support their position with an argument that politics ought not to be criticized on social media because the message is not directly being heard by the head of state; this would make them guilty of ''ignoratio elenchi'', as people such as B may be criticizing politics because they have a strong message for their peers, or because they wish to bring attention to political matters, rather than ever intending that their views would be directly read by the president. ● Example 2: A and B are debating about the law. B missed the point. The question was not if B's neighbor believes that law should allow, but rather if the law does allow it or not. Samuel Johnson's unique "refutation" of Bishop Berkeley's immaterialism, his claim that matter did not actually exist but only seemed to exist, has been described as ''ignoratio elenchi'': during a conversation with Boswell, Johnson powerfully kicked a nearby stone and proclaimed of Berkeley's theory, "I refute it ''thus''!" (See also ''

argumentum ad lapidem 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. Thi ...

''.) A related concept is that of the red herring, which is a deliberate attempt to divert a process of enquiry by changing the subject. ''Ignoratio elenchi'' is sometimes confused with

straw man A straw man (sometimes written as strawman) is a form of argument and an informal fallacy of having the impression of refuting an argument, whereas the real subject of the argument was not addressed or refuted, but instead replaced with a false o ...

argument.

Etymology

The phrase ''ignoratio elenchi'' is . Here ''elenchi'' is the genitive singular of the Latin noun ''

elenchus Elenchus may refer to: * ''Elenchus'' (brachiopod) Gray, 1843, a genus of brachiopods that is a synonym of ''Weiningia'' * ''Elenchus'' (insect) Curtis, 1831, a parasitic insect genus in the family Elenchidae * ''Elenchus'' (book), a third-centur ...

'', which is . The translation in English of the Latin expression has varied somewhat. Hamblin proposed "misconception of refutation" or "ignorance of refutation" as a literal translation, John Arthur Oesterle preferred "ignoring the issue", and Irving Copi,

Christopher Tindale Christopher William Tindale (born 1953) is a Canadian philosopher specializing in rhetoric, argumentation theory, and ancient Greek philosophy. Tindale is an editor of the journal '' Informal Logic'', and currently serves as the chair of the Cen ...

and others used "irrelevant conclusion".

References

External links

Appeal to Authority Breakdown, Examples, Definitions, & More

(bilingual with the original German) by Arthur Schopenhauer
Red herring in political speech
{{Aristotelianism Metaphors