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单词 iff
释义 iff
\ˈifan(d)ˈōnlēˈif; sometimes read as ˈif.f with a syllabic f\ conjunction
Etymology: alteration of if
: if and only if
 < two lines that are not vertical are parallel iff they have equal slopes >
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更新时间:2024/11/10 17:00:06