# theorem

noun the·o·rem \ ˈthē-ə-rəm , ˈthir-əm \
Updated on: 6 Jan 2018

## Definition of theorem

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

## Recent Examples of theorem from the Web

• The third boy could recite mathematical theorems at will.
• And at this point, Fermat’s last theorem was nothing new and his interest in it was a bit eccentric.
• The brilliant codesmetologist thought hard with his brain-box, using Sir Isaac Newton’s impeccable physics theorems to unravel the secret nature of Ludwig van Beethoven’s most famous sonata in order to save the beautiful woman.
• But while the theorem was found after Fermat's death, nobody ever found the proof and the problem went unsolved for centuries.
• Checking a single theorem could require a decade of work, because the computer essentially had to be taught all of the mathematics a proof was built on, in agonizing, inhuman detail.
• Thankfully the Cold War ended without this theorem being tested and I, for one, would like to keep it that way.
• Shannon’s theorems—equally applicable to conveying strings of bits across distance as coded signals or across time as data stored in memory registers—were essential to getting these machines to work.
• The numbers on the tablet represented Pythagorean triples in Neugebauer's mind, which are sets of three numbers that can be used to solve the Pythagorean theorem (a2+b2=c2), writes Engelking.

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'theorem.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

## Origin and Etymology of theorem

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

noun

## Definition of theorem for English Language Learners

• : a formula or statement that can be proved from other formulas or statements

## Seen and Heard

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