“双条件式”的概念、定义、翻译、参考文献-科学参考

单词	双条件式
释义	双条件式 Encyclopedia 文学特指性释 biconditional双条件式对于任何命题P、Q而言，P是Q的充分必要条件，P成立时，Q成立；Q成立时，P成立，即P等价于Q的条件式。用符号“↔”表示。又称等值式。
随便看	OCT Contemporary Art Terminal octdong surface octet octet breaking octet component octet rule octet theory octiamond octiamond tiling octic octic curve octic graph octic reciprocity theorem octic surface octillion octo- OCTOBER October October Crisis October Diploma October File October Revolution in Sudan October Revolution of Venezuela October Tenth Agreement Octobrist Party

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