必要十分条件 ひつようじゅうぶんじょうけん Meanings Noun necessary and sufficient condition Kanji 必 must. Read as ヒツ. 要 need. Read as ヨウ. 十 ten. Read as ジュウ. 分 part. Read as ブン. 条 clause. Read as ジョウ. 件 case. Read as ケン. Jinuma: Japanese Dictionary · Word lists