˜Snow is white™ is true in English iff snow is white.    From Wordnik.com.  [Quotation] Reference

This may get a little confusing but the difference for the sake of argument between 'if' and 'iff' is as follows.    From Wordnik.com.  [What you think about the Iff card] Reference

E is Lewis-common knowledge for the agents of N iff.    From Wordnik.com.  [Common Knowledge] Reference

A formula is C-valid iff it is valid on every frame.    From Wordnik.com.  [Connexive Logic] Reference

We may then say that x is a train iff for some carriage.    From Wordnik.com.  [Abstract Objects] Reference

ˆˆ Ω (alternatively, ω-Bayes rational) iff si is.    From Wordnik.com.  [Common Knowledge] Reference

H generates G via booleanization iff G = dc (H ˆª nH).    From Wordnik.com.  [Facts] Reference

B-properties iff for any worlds w1 and w2, if there is a.    From Wordnik.com.  [Supervenience] Reference

A ‰» B iff umin (A) umax (B) (Interval representation).    From Wordnik.com.  [Preferences] Reference

G divides its reference, iff it is never the case that if.    From Wordnik.com.  [Sortals] Reference

I have an idea sir, next winter iff I can this summer make.    From Wordnik.com.  [The Underground Railroad A Record of Facts, Authentic Narratives, Letters, &c., Narrating the Hardships, Hair-Breadth Escapes and Death Struggles of the Slaves in Their Efforts for Freedom, As Related by Themselves and Others, or Witnessed by the Author.] Reference

Š¢ Bew (n,) iff n is the Gödel code of a proof of φ.    From Wordnik.com.  [Self-Reference] Reference

I could like her better, iff she was better to my young lady.    From Wordnik.com.  [Clarissa Harlowe] Reference

The direction of a = the direction of b iff a is parallel to b.    From Wordnik.com.  [Abstract Objects] Reference

Proposition p represents the facts in G iff ts (p) Š† des (G).    From Wordnik.com.  [Facts] Reference

The facts in set G (jointly) necessitate p iff ces (G) Š† ts (p).    From Wordnik.com.  [Facts] Reference

G is conjunctively complete iff for every set of facts H in Ï (F).    From Wordnik.com.  [Facts] Reference

G in B such that x has G, and everything that has G has F, i.e., iff.    From Wordnik.com.  [Supervenience] Reference

Biconditional Naturalism: accept p iff p is sanctioned by X-standards.    From Wordnik.com.  [Naturalism in the Philosophy of Mathematics] Reference

One would then expect that (a) is true iff (b) is true at all worlds.    From Wordnik.com.  [Propositions] Reference

But that same reseit, iff your Honner so please, to cure a shrewish wife.    From Wordnik.com.  [Clarissa Harlowe] Reference

G in B such x has G, and necessarily everything that has G has F, i.e., iff.    From Wordnik.com.  [Supervenience] Reference

G is consistent iff for every fact x in F#, not both x ˆˆ G and xn ˆˆ G.    From Wordnik.com.  [Facts] Reference

X-f-e is said to have a propositional content iff e is a first-order formula.    From Wordnik.com.  [Dialogical Logic] Reference

A proposition E Š† Ω is common knowledge for the agents of N at ω iff.    From Wordnik.com.  [Common Knowledge] Reference

BLITZER: What was the biggest problem, iff any, that you had as a result then?.    From Wordnik.com.  [CNN Transcript Sep 20, 2005] Reference

P entails Q iff, for any possible world W, if P is true at W, then Q is true at.    From Wordnik.com.  [Propositions] Reference

It is that S pervades H iff H has “non-occurrence in the loci of absence of S”.    From Wordnik.com.  [Analytic Philosophy in Early Modern India] Reference

Must you, my lord, make more mischiefe, and adde to my plagues, iff I have any? —.    From Wordnik.com.  [Pamela] Reference

For example, most boys sang iff the boys who sang outnumber the boys who did not sing.    From Wordnik.com.  [Logical Form] Reference

A substantial fact exists in a world iff in that world the objects have that property.    From Wordnik.com.  [Facts] Reference

F there is a neurological predicate G such that a sentence of the form ˜x is F iff x is.    From Wordnik.com.  [Physicalism] Reference

Likewise, someone sang iff: S maps some individual onto T; that is, for some individual x.    From Wordnik.com.  [Logical Form] Reference

C.iff May is a former RNC.communications director, also in D.C. Nice to see you, gentleman.    From Wordnik.com.  [CNN Transcript Jun 13, 2005] Reference

HEMMER: Former RNC.communication director C.iff May also in D.C. We call it Kamber and May.    From Wordnik.com.  [CNN Transcript May 12, 2004] Reference

When he had looked his fill, Depape sauntered on down to the Sher-iff's office and went in.    From Wordnik.com.  [Wizard and Glass]