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theorem

Pronunciation: /ˈθiː.ə.ɹəm/

The English word “theorem” has 4 meanings listed here.

noun

  1. A mathematical statement of some importance that has been proven to be true. Minor theorems are often called propositions. Theorems which are not very interesting in themselves but are an essential part of a bigger theorem's proof are called lemmas.
  2. A mathematical statement that is expected to be true.
  3. A syntactically correct expression that is deducible from the given axioms of a deductive system.

verb

  1. To formulate into a theorem.

Etymology

From Middle French théorème, from Late Latin theōrēma, from Ancient Greek θεώρημα (theṓrēma, “speculation, proposition to be proved”) (Euclid), from θεωρέω (theōréō, “to look at, view, consider, examine”), from θεωρός (theōrós, “spectator”), from θέα (théa, “a view”) + ὁράω (horáō, “to see, look”). See also theory, and theater.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.