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Definition of Non sequitur
1. Noun. A reply that has no relevance to what preceded it.
2. Noun. (logic) a conclusion that does not follow from the premises.
Definition of Non sequitur
1. Noun. Any abrupt and inexplicable transition or occurrence. ¹
2. Noun. (logical fallacy) Any invalid argument in which the conclusion cannot be logically deduced from the premises; a logical fallacy. ¹
3. Noun. A statement that does not logically follow a statement that came before it. ¹
4. Noun. (context: humor) A kind of pun that uses a change of word, subject, or meaning to make a joke of the listener’s expectation. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Non Sequitur
Literary usage of Non sequitur
Below you will find example usage of this term as found in modern and/or classical literature:
1. History of English Thought in the Eighteenth Century by William Randolph Hearst (1851)
"NON-SEQUITUR. There is a punning epigram by Dr. Donne which is false in its
conclusion :— " I am unable," yonder beggar cries, " To stand or go. ..."
2. Fallacies: A View of Logic from the Practical Side by Alfred Sidgwick (1884)
"... of these departments is the only one that needs analysis in Logic* non sequitur
is thus co-extensive with failure in the formal adequacy of the Reason. ..."
3. English Eccentrics and Eccentricities by John Timbs (1866)
"non sequitur AND THEREFORE. Lord Avonmore was subject to perpetual fits of absence
of mind, and was frequently insensible to the ..."
4. Johannis Wyclif Tractatus de logica by John Wycliffe (1899)
"... non sequitur, si A in aliquo loco deest, quod in ilio loco non est. Non ergo
sequitur: Aliquando non erit A; igitur in máximo tempore non erit A, ..."
5. A Budget of Paradoxes by Augustus De Morgan (1915)
"In fact, the argument is a perfect non sequitur.1 Those who propose it have in
their minds, though in a cloudy and indefinite form, ..."
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