If and only if
lastmod 2015-12-24created 2015-12-241 edits
In logic and related fields such as mathematics and philosophy, if and only if (shortened iff) is a biconditional logical connective between statements.
lastmod 2015-12-24created 2015-12-241 edits
In logic and related fields such as mathematics and philosophy, if and only if (shortened iff) is a biconditional logical connective between statements.