theorem

noun

the·​o·​rem ˈthē-ə-rəm How to pronounce theorem (audio)
ˈthir-əm
1
: a formula, proposition, or statement in mathematics or logic deduced or to be deduced from other formulas or propositions
2
: an idea accepted or proposed as a demonstrable truth often as a part of a general theory : proposition
the theorem that the best defense is offense
3
4
: a painting produced especially on velvet by the use of stencils for each color
theorematic adjective

Examples of theorem in a Sentence

Recent Examples on the Web Such methods are not sufficient to cope with theorems at the level of an IMO, however. Manon Bischoff, Scientific American, 17 Jan. 2024 So, for example, there are now projects to formalize proofs of big theorems in these things called formal proof assistants, which are like computer languages that can 100% verify that a theorem is true or not and — is proven or not. Quanta Magazine, 1 Feb. 2024 Any theorem centered on the behavior of mass should have pretty much nothing to do with light, as light is massless. Jackie Appel, Popular Mechanics, 22 Aug. 2023 There must be thousands of old and new explanations of the Pythagorean theorem online. Matteo Wong, The Atlantic, 6 Feb. 2024 Researchers have used a 350-year-old theorem to better understand the strange nature of light. Jackie Appel, Popular Mechanics, 22 Aug. 2023 Her thinking had become choked — a mere testing of theorems. EW.com, 9 Oct. 2023 Andrew Wiles of the University of Oxford used them, for example, to prove Fermat’s theorem, and Maryna Viazovska of the Swiss Federal Institute of Technology in Lausanne used them to find the densest sphere-packing arrangement in eight spatial dimensions. Manon Bischoff, Scientific American, 5 Feb. 2024 Baldur works with Isabelle, a proof assistant or automated theorem prover,to check its proofs. IEEE Spectrum, 25 Jan. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'theorem.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Late Latin theorema, from Greek theōrēma, from theōrein to look at, from theōros spectator, from thea act of seeing — more at theater entry 1

First Known Use

1551, in the meaning defined at sense 1

Time Traveler
The first known use of theorem was in 1551

Dictionary Entries Near theorem

Cite this Entry

“Theorem.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/theorem. Accessed 12 Apr. 2024.

Kids Definition

theorem

noun
the·​o·​rem ˈthē-ə-rəm How to pronounce theorem (audio)
ˈthi(-ə)r-əm
1
: a formula, proposition, or statement in mathematics or logic that has been or is to be proved from other formulas or propositions
2
: an idea accepted or proposed as a demonstrable truth

More from Merriam-Webster on theorem

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