Last Updated
：2025/11/19
iff
Conjunction
alt-of
obsolete
Japanese Meaning
必要十分条件（ある命題が真であるための条件として、またその条件が成り立つときに命題が真である状態を表す） / 論理学において、二つの命題の真偽値が一致する、すなわち一方が真ならばもう一方も真、逆に偽ならばもう一方も偽であることを示す / 両側の条件：一方の条件が成立するときに限り、もう一方も成立する関係を意味する
Quizzes for review
(mathematics, logic) If and only if; used to show that the truth values of two statements are the same. / biconditionally / just in case or just in the case that / equal / that is to say / XNOR
音声機能が動作しない場合はこちらをご確認ください
See correct answer
iff
A function f is injective iff f(x1) = f(x2) implies x1 = x2.
See correct answer
A function f is injective iff f(x1) = f(x2) implies x1 = x2.
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
