necessary condition


Definition of necessary condition 

1 : a state of affairs that must prevail if another is to occur : prerequisite

2 : a proposition whose falsity assures the falsity of another

Examples of necessary condition in a Sentence

Recent Examples on the Web

In their own words, though, their expression represents a sufficient condition but not a necessary condition. Chris Lee, Ars Technica, "Entanglement allows one party to control measurement results," 16 Sep. 2018 This move will keep Japanese and American warships from getting close to the islands, a necessary condition in case China wants to land troops. Joe Pappalardo, Popular Mechanics, "Here's What a Shooting War in the East China Sea Might Look Like," 27 Nov. 2013 But economic freedom is a necessary condition for freedom of the press. Kevin Brookes, WSJ, "Freer Markets, Freer Media," 1 May 2018 Financial contributions are a necessary condition for participation in the policymaking process. Jay Willis, GQ, "Trump Officials Are Now Openly Bragging About How Corrupt They Are," 25 Apr. 2018 King’s assassination provided the necessary conditions for hip-hop to spring forth from the blood of generations that had spilled in street after street. Vann R. Newkirk Ii, The Atlantic, "Fear of a Black 'Messiah'," 8 Apr. 2018 The framers became convinced that contractual stability was a necessary condition of prosperity. James W. Ely Jr. And, WSJ, "The Supreme Court’s Chance to Rebuild a ‘Constitutional Bulwark’," 18 Mar. 2018 With reverence for Xi a necessary condition for career advancement, there’s very little incentive to voice differing opinions, with the lack of vigorous policy debate a real worry for continued good governance. Charlie Campbell / Beijing, Time, "'More Opposition in Mao's Time.' Why China's Xi Jinping May Have to Rule for Life," 12 Mar. 2018 Good motility is a necessary condition for fertilizing a female egg. Smithsonian, "Heart-Stopping Arrow Poison Could Be the Key to Male Birth Control," 31 Jan. 2018

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

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First Known Use of necessary condition

1651, in the meaning defined at sense 1

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Last Updated

14 Nov 2018

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The first known use of necessary condition was in 1651

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living or existing for a long time

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