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Is equivalent to; implies and is implied by; is true and false in the same cases as.
Definition source: English Wiktionary via Wiktextract
Topics: human-sciences, logic, mathematics, philosophy, sciences
Examples
- A rectangle is a square if and only if all four of its sides have the same length.
- An integer is even if and only if its square is also even.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Synonym of if (with added intensity)
Definition source: English Wiktionary via Wiktextract
Usage: broadly, informal
Examples
- I'll let you go to the concert if and only if you clean your room.
Meaning relationships
Synonyms: if
Antonyms: none provided
No etymology was provided for this word.
Across languages
Translations
41 source translations are retained for this English entry.
-
Arabic:
شَرْطَ أَنّ
(šarṭa ʔann)
— implies and is implied by
-
Arabic:
فَقَط إِذَا
(faqaṭ ʔiḏā)
— implies and is implied by
-
Arabic:
شَرِيطَةً أَنَّ
(šarīṭatan ʔanna)
— implies and is implied by
-
Arabic:
فَقَط فِي حَالَة
(faqaṭ fī ḥāla)
— implies and is implied by
-
Arabic:
بشرط إن
(bešarṭ ʔenn)
— implies and is implied by
-
Arabic:
بس لو
— implies and is implied by
-
Basque:
baldin eta soilik baldin
— implies and is implied by
-
Catalan:
si i només si
— implies and is implied by
-
Chinese Mandarin:
當且僅當 /当且仅当
(dāngqiějǐndāng)
— implies and is implied by
-
Chinese Mandarin:
若且唯若
(ruòqiěwéiruò)
— implies and is implied by
-
Czech:
právě tehdy, když
— implies and is implied by
-
Danish:
hvis og kun hvis
— implies and is implied by
-
Dutch:
dan en slechts dan als
— implies and is implied by
-
Dutch:
als en slechts als
— implies and is implied by
-
Esperanto:
se kaj nur se
— implies and is implied by
-
Finnish:
jos ja vain jos
— implies and is implied by
-
French:
si et seulement si
— implies and is implied by
-
Georgian:
მხოლოდ იმ შემთხვევაში, თუ
(mxolod im šemtxvevaši, tu)
— implies and is implied by
-
German:
genau dann, wenn
— implies and is implied by
-
German:
dann und nur dann, wenn
— implies and is implied by
-
Greek:
αν και μόνο αν
(an kai móno an)
— implies and is implied by
-
Hebrew:
אם ורק אם
(im ve-rak im)
— implies and is implied by
-
Hungarian:
akkor és csakis akkor, ha
— implies and is implied by
-
Icelandic:
ef og aðeins ef
— implies and is implied by
-
Icelandic:
þá og því aðeins að
— implies and is implied by
-
Irish:
is gá agus is leor
— implies and is implied by
-
Italian:
se e solo se
— implies and is implied by
-
Lithuanian:
tada ir tik tada
— implies and is implied by
-
Macedonian:
ако и само ако
(ako i samo ako)
— implies and is implied by
-
Persian:
اگر و فقط اگر
(agar va faqat agar)
— implies and is implied by
-
Polish:
wtedy i tylko wtedy
— implies and is implied by
-
Portuguese:
se e somente se
— implies and is implied by
-
Romanian:
dacă și numai dacă
— implies and is implied by
-
Russian:
тогда́ и то́лько тогда́
— implies and is implied by
-
Slovene:
če in samo če
— implies and is implied by
-
Spanish:
si y sólo si
— implies and is implied by
-
Swedish:
om och endast om
— implies and is implied by
-
Thai:
ก็ต่อเมื่อ
— implies and is implied by
-
Turkish:
ancak ve ancak
— implies and is implied by
-
Vietnamese:
khi và chỉ khi
— implies and is implied by
-
Vietnamese:
nếu và chỉ nếu
— implies and is implied by