If and only if

From Simple English Wikipedia, the free encyclopedia

Iff (if and only if) means that two statements are "biconditional". For example, the sentence "Two rational numbers are equal IF AND ONLY IF ad = bc." is a biconditional statement, containing IF AND ONLY IF, or IFF.

Retrieved from "http://simple.wikipedia.org../../../i/f/_/If_and_only_if.html"

Category: Mathematics

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• This page was last modified 22:39, 5 April 2007 by Wikipedia user TXiKiBoT. Based on work by Wikipedia user(s) FlaBot, Thijs!bot and Tdxiang and Anonymous user(s) of the Simple English Wikipedia.
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