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iff
[edit]"Iff" is not a spelling error; it is a recognised term in mathematics, derived from a contraction of the expression "if and only if". JBW (talk) 22:35, 31 October 2023 (UTC)
"Iff" is not a spelling error; it is a recognised term in mathematics, derived from a contraction of the expression "if and only if". JBW (talk) 22:35, 31 October 2023 (UTC)[reply]