## 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: Sun Dec 4 20:49:19 2016

14874 terms

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