Necessary condition


In mathematics, a condition that must be satisfied for a statement to be true, but that does not in and of itself make it true. For example, a necessary condition to become president of the United States is that a candidate be over thirty-five years of age, but just being over thirty-five does not make one president.

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  • Necessary-stool

    noun 1. .

  • Necessitarian

    [nuh-ses-i-tair-ee-uh n] /nəˌsɛs ɪˈtɛər i ən/ noun 1. a person who advocates or supports (distinguished from ). adjective 2. pertaining to necessitarians or . n. 1754, from necessity + -arian. As an adjective from 1739. Related: Necessitarianism.

  • Necessitarianism

    [nuh-ses-i-tair-ee-uh-niz-uh m] /nəˌsɛs ɪˈtɛər i əˌnɪz əm/ noun 1. the doctrine that all events, including acts of the will, are determined by antecedent causes; determinism. /nɪˌsɛsɪˈtɛərɪəˌnɪzəm/ noun 1. (philosophy) another word for determinism Compare libertarian

  • Necessitated

    [nuh-ses-i-teyt] /nəˈsɛs ɪˌteɪt/ verb (used with object), necessitated, necessitating. 1. to make necessary or unavoidable: The breakdown of the car necessitated a change in our plans. 2. to compel, oblige, or force: The new wage demand will necessitate a price increase. /nɪˈsɛsɪˌteɪt/ verb (transitive) 1. to cause as an unavoidable and necessary result 2. (usually […]

  • Necessitate

    [nuh-ses-i-teyt] /nəˈsɛs ɪˌteɪt/ verb (used with object), necessitated, necessitating. 1. to make necessary or unavoidable: The breakdown of the car necessitated a change in our plans. 2. to compel, oblige, or force: The new wage demand will necessitate a price increase. /nɪˈsɛsɪˌteɪt/ verb (transitive) 1. to cause as an unavoidable and necessary result 2. (usually […]


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