## iff

(mathematics, logic) if and only if, i.e. necessary and sufficient. For example, two figures are congruent iff one can be placed over the other so that they coincide.

Last updated: 2002-12-28

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(mathematics, logic) if and only if, i.e. necessary and sufficient. For example, two figures are congruent iff one can be placed over the other so that they coincide.

Last updated: 2002-12-28

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Updated: Sat Jan 21 10:58:13 2017

14877 terms

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