## 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: Mon Apr 24 02:51:44 2017

24087 terms

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