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• Necessary and sufficient conditions - Wikipedia, the free encyclopedia

  In logic, the words necessity and sufficiency refer to the implicational relationships between statements. The assertion that one statement is a necessary and sufficient condition ...

• sufficient definition |Dictionary.com

  adjective . 1. adequate for the purpose; enough: sufficient proof; sufficient protection. 2. Logic. (of a condition) such that its existence leads to the occurrence of a given ...

• sufficient - definition of sufficient by the Free Online Dictionary ...

  suf·fi·cient   (s-f sh nt) adj. 1. Being as much as is needed. 2. Archaic Competent; qualified. [Middle English, from Old French, from Latin suffici ns, sufficient-, present ...