必要条件

日本語

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必要条件

noun

二つの命題があり、一つ目の命題が真であれば二つ目の命題が真であるとき、二つ目の命題を一つ目の命題の必要条件という。ある実数が整数であることはその実数が偶数であるための必要条件だ。
（俗用）必要とされる条件。

In English

sine qua non prerequisite
necessary condition logical statement

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Cite this

MLA

"必要条件." Wiktionary, via Micwyn, micwyn.com/word/ja/%E5%BF%85%E8%A6%81%E6%9D%A1%E4%BB%B6. Accessed 7 Nov. 2026.

APA

必要条件. (n.d.). In Wiktionary, via Micwyn. Retrieved November 7, 2026, from https://micwyn.com/word/ja/%E5%BF%85%E8%A6%81%E6%9D%A1%E4%BB%B6

Chicago

"必要条件." Wiktionary, via Micwyn. Accessed November 7, 2026. https://micwyn.com/word/ja/%E5%BF%85%E8%A6%81%E6%9D%A1%E4%BB%B6.

BibTeX

@misc{micwyn_2026,
  title = {必要条件},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/ja/%E5%BF%85%E8%A6%81%E6%9D%A1%E4%BB%B6},
  urldate = {2026-11-07}
}