syllogism

Definition of syllogismnext
as in logic
formal a formal argument that is formed by two statements and a conclusion which must be true if the two statements are true An example of a syllogism is: "All men are human; all humans are mortal; therefore all men are mortal."

Related Words

Relevance

Dissimilar Words

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of syllogism The syllogism works only with two premises and a conclusion. 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
Recent Examples of Synonyms for syllogism
Noun
  • Again and again, Jewish tradition warns against mob logic — against the false safety of blending into collective outrage.
    Rabbi Bruce D. Forman, Sun Sentinel, 10 Feb. 2026
  • Put that same logic to work in other areas of the home.
    Hallie Milstein, Southern Living, 10 Feb. 2026
Noun
  • The counties must also hold a public hearing explaining the reasoning for the moratorium or conflicting standards.
    Cami Koons, Iowa Capital Dispatch, 13 Feb. 2026
  • Want more on our 2026 Oscar Predictions and the reasoning behind them?
    Marcus Jones, IndieWire, 12 Feb. 2026
Noun
  • The national lab has a wide array of laboratories working within it, including sites focused on research in advanced optical materials, fuel synthesis catalysis, hydrogen safety sensor testing, renewable fuels and lubricants and solar radiation.
    John Aguilar, Denver Post, 10 Feb. 2026
  • Protein helps build and preserve muscle by supplying amino acids and stimulating muscle protein synthesis, especially when coupled with strength training.
    Amy Brownstein, Verywell Health, 9 Feb. 2026

Browse Nearby Words

Cite this Entry

“Syllogism.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/syllogism. Accessed 16 Feb. 2026.

More from Merriam-Webster on syllogism

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!