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For those trained in formal argument, the syllogism is a classical form of deduction, specifically an argument consisting of a major and a minor premise and a conclusion. One example is the inference that “kindness is praiseworthy” from the premises “every virtue is praiseworthy” and “kindness is a virtue.” Syllogism came to English through Anglo-French from the Latin noun syllogismus, which in turn can be traced back to the Greek verb syllogizesthai, which combines logizesthai (meaning “to calculate,” and coming from logos, meaning “word” or “reckoning”) with syl-, which comes from syn-, meaning “with” or “together.”
Examples of syllogism in a Sentence
The Lost Women Of Science Initiative, Scientific American, 30 Nov. 2023
The ability to count indefinitely beyond fingers or body parts; to read, write, store, and learn ideas through text; the tendency to reason abstractly with syllogisms and enthymemes and approximations of formal logic – all were tools for thinking that were culturally created and then transmitted.
—Michael Muthukrishna, Fortune, 31 Oct. 2023
This syllogism is embraced by many Democrats, who are determined to recapture an industrial working-class base, and many Republicans, who use it as evidence that the government has sold out American workers in the heartland.
—Adam S. Posen, Foreign Affairs, 20 Apr. 2021
Twitter users often accept a flawed syllogism by using a conclusion as one of the premises – namely, that the platform spreads truthful information.
—Aaron Duncan, The Conversation, 29 Oct. 2020
Chairman Xi will undoubtedly want to prevent this syllogism from presenting itself to the minds of Chinese Christians.
—Cameron Hilditch, National Review, 1 Oct. 2020
The syllogism runs something like this: Jews, regardless of their American citizenship, owe loyalty to Israel.
—Los Angeles Times, 23 Aug. 2019
Realizing Santa wasn't real made the syllogism obvious.
—Phil Plait, Discover Magazine, 31 Dec. 2010
Cite this Entry
“Syllogism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/syllogism. Accessed 13 Jun. 2026.
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syllogism
noun
