Meaning of "iff" in the English dictionary

PRONUNCIATION OF IFF

iff  [ɪf]

GRAMMATICAL CATEGORY OF IFF

Iff is a conjunction.

The conjunction is an invariable grammatical category used to join together words and sentences.

WHAT DOES IFF MEAN IN ENGLISH?

If and only if

↔ ⇔ ≡ Logical symbols representing iff In logic and related fields such as mathematics and philosophy, if and only if is a biconditional logical connective between statements. In that it is biconditional, the connective can be likened to the standard material conditional combined with its reverse; hence the name. The result is that the truth of either one of the connected statements requires the truth of the other, i.e., either both statements are true, or both are false. It is controversial whether the connective thus defined is properly rendered by the English "if and only if", with its pre-existing meaning. There is nothing to stop one from stipulating that we may read this connective as "only if and if", although this may lead to confusion. In writing, phrases commonly used, with debatable propriety, as alternatives to P "if and only if" Q include Q is necessary and sufficient for P, P is equivalent to Q, P precisely if Q, P precisely when Q, P exactly in case Q, and P just in case Q. Many authors regard "iff" as unsuitable in formal writing; others use it freely.

Definition of iff in the English dictionary

The definition of iff in the dictionary is a shortened form of if and only if: it indicates that the two sentences so connected are necessary and sufficient conditions for one another. Usually iff is used for equivalence in the metalanguage, rather than as the biconditional in the object language.

TRANSLATION OF IFF

Find out the translation of iff to 25 languages with our English multilingual translator.

The translations of iff from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «iff» in English.

• Translator English - Chinese: 当且仅当
• Translator English - Spanish: si y sólo si
• English: iff
• Translator English - Hindi: iff
• Translator English - Arabic: المنتدى
• Translator English - Russian: тогда и только тогда
• Translator English - Portuguese: sse
• Translator English - Bengali: iff
• Translator English - French: ssi
• Translator English - Malay: Iff
• Translator English - German: genau dann, wenn
• Translator English - Japanese: IFF
• Translator English - Korean: IFF
• Translator English - Javanese: Iff
• Translator English - Vietnamese: khi và chỉ khi
• Translator English - Tamil: IFF
• Translator English - Marathi: Iff
• Translator English - Turkish: iFF
• Translator English - Italian: se e solo se
• Translator English - Polish: IFF
• Translator English - Ukrainian: тоді і тільки тоді
• Translator English - Romanian: dacă și numai dacă
• Translator English - Greek: αν και μόνο αν
• Translator English - Afrikaans: IFF
• Translator English - Swedish: iff
• Translator English - Norwegian: iFF

10 ENGLISH BOOKS RELATING TO «IFF»

Discover the use of iff in the following bibliographical selection. Books relating to iff and brief extracts from same to provide context of its use in English literature.

Dictionary of Antibiotics & Related Substances

Name Index >/t 21101 III, iff A-00800 >A 21101 IV, see A-00793 A 43F, see V- 00025 >A 128P,iff N-00076 A 1 ЗОВ, «г A-00314 A 130C, see A-00315 А 150/1, see A-003 16 >A20U, iff A-003 17 A 20 1С, if? A-003 18 A 20 1 0, iff A-003 19 A 20 ...

Barrie W. Bycroft, 1987

The Universalist Companion, with an Almanac and Register, ...

JC^r5^5cffcccofo^•T'r-T'^,-T'^,□^,□^' Iff Iff 'ff Iff VffVff iff iff iffjff ^ff m ?» — 0 cjTxi i- iff -*cff iN t.t>i>t^i>i>t>i>i>>i>'i> Iff Vff^Vff Jff Vff Vff Iff »ff Vff Vff Vff Vff Vff Iff Iff iff, iff i- < _ xi- _"t .-0" -< □_- ;r. 1- o -t ^3 ^ Q 30 Iff <ff V~ Vff Iff Vff Vff Lff — □ -J- -f "<r "3" ...

‎1846

The Naval Institute Guide to the Soviet Navy

(3) Identification Friend or Foe (IFF), and (4) detect and counter threats (ESM/ ECM). Few details of these systems are available for publication. The following are the identified EW systems fitted in Soviet surface ships and submarines. IFF sets ...

Norman Polmar, 1991

The Itinerary, Published by Thomas Hearne. 3. Ed. - Oxford, ...

John Leland. bac tenet Sine J de episcopo t . bidam in eadem villa, iff ibi habet l. carucam, iff 11. servos, iff ll. bordarios. Valet xn. solidos. Hanc hidam tenuis Alwardus de rege Edwardo, fed tamen prius sue • rat de epifcopatu. Idem episcopus ...

John Leland, 1770

Air Pollution and Lung Disease in Adults

IDIOPATHIC PULMONARY FIBROSIS INTRODUCTION Idiopathic pulmonary fibrosis (IFF) or cryptogenic fibrosing alveolitis is an interstitial lung disease of unknown etiology. It has an estimated prevalence of 3 to 5 individuals per l00, 000 ...

Philip Witorsch, Samuel V. Spagnolo, 1994

漢字熟語字典

bend ori occasion, opportunity 1 o iff L i> ori(shimo) just then 2 iff A o(ri)i(tte) earnestly 3 iff *t oriori from time to time iffD o(re)kuchi a split/break 4 iff ii o(ri)ko( mu) tuck in, insert o(ri)ko(mi) an insert iff R. o(ri)jaku (carpenter's) folding ruler • tfW ...

Wolfgang Hadamitzky, Kimiko Fujie-Winter, 1996

The Naval Institute Guide to World Naval Weapon Systems

IFF systems generally employ interrogators and transponders; they attempt to match the reply received from a transponder with the target picked up by an associated or separate) radar. Systems vary in the frequencies they use and in coding ...

Norman Friedman, 2006

The itinerary of John Leland, publ. by T. Hearne, To which ...

Trado etiam eis territoria iff pojsesfiones quas habuerunt ab inltio qui santlo loco deser- vierunt ad gloriam iff laudem dei, iff ad honorem iff reve- rentiam antecejsorum iff successorum meorum, iff unum cajsatum in ipja villa, & omnem decimam ...

John Leland, Thomas Hearne, 1768

The lives and characters, of the officers of the crown, and ...

"Gulielmus iff Maria Dei Gratia, 'Magna 'hritanniity Francia iff Hiber- nia Rex iff Regina, Stc. Quandoqui- dem nos, ex jumma iff jerena no fir a gratia, perpendentes praclara ilia iff extraor dinar ia officia nobis iff corona ac regno Scotia preflita iff ...

George Crawfurd, 1726

Academia tertia Anglicana; or, The antiquarian annals of ...

Tbis be said, iff then departed ; bis habit being a violet jbort cloth coat, under • which was a sutt of the same ; white woollen stockings, iff cleane black Jhoes. The wayes iff weather were very foul iff dirty. Tet no spot os dirt was scene upon him.

Francis Peck, Richard Butcher, William Forster, 1727

10 NEWS ITEMS WHICH INCLUDE THE TERM «IFF»

Find out what the national and international press are talking about and how the term iff is used in the context of the following news items.

They cost Africa $50 billion a year - so what next? Mbeki-led panel …

He was referring to illicit financial flows (IFF), said to have cost Africa an astounding $1 trillion over the last 50 years and about $50 billion every ... «Mail & Guardian Africa, Jul 15»

Analyst Price Target Update on Internationa Flavors & Fragrances, Inc.

Internationa Flavors & Fragrances, Inc. (NYSE:IFF) should head towards $122.71 per share according to 7 Analysts in consensus. However ... «News Watch International, Jul 15»

Givaudan Profit Beats Estimates as CEO Prepares Strategy …

... supply a new breed of small and mid-sized customer that are both fast-growing and innovative, Andreas Fibig, CEO of IFF, said June 2. «Bloomberg, Jul 15»

John Giddings joins inaugural IFF line-up

The International Festival Forum (IFF) has named agent and festival promoter John Giddings as its keynote at the first edition of the new global ... «Access All Areas, Jul 15»

tehran times : Nike shows interest to sign kit deal with IFF

American famous sportswear company has shown interest to sign a kit deal with Iran Football Federation, following the nuclear deal between ... «Tehran Times, Jul 15»

PT Angkasa Pura II secures a loan of Rp400 billion from IFF …

PT Angkasa Pura II secures a loan of Rp400 billion from IFF. Rabu, 15 Juli 2015 17:27 WIB | 0 Views. PT Angkasa Pura II secures a loan of ... «ANTARA, Jul 15»

International Flavors & Fragrances Given Consensus …

International Flavors & Fragrances logo Shares of International Flavors & Fragrances (NYSE:IFF) have received a consensus rating of “Buy” ... «The Legacy, Jul 15»

SPASH grad completes NATO jet pilot training

About 80 new instructor pilots are trained annually and up to 150 pilots transition through IFF each year. All of the training is supported by a staff ... «Stevenspointjournal, Jul 15»

Stock in Focus - Internationa Flavors & Fragrances, Inc. (NYSE:IFF)

There are a number of sell-side research firms which cover Internationa Flavors & Fragrances, Inc. (NYSE:IFF) and offer projections on ... «Vanguard Tribune, Jul 15»

Short Interest Update of Internationa Flavors & Fragrances, Inc …

Internationa Flavors & Fragrances, Inc. (NYSE:IFF) has seen a shortfall of 46,919 shares or 3.4% in the short interest. The remaining shorts are ... «News Watch International, Jul 15»