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A function f is injective iff f(x1) = f(x2) implies x1 = x2.
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A function f is injective iff f(x1) = f(x2) implies x1 = x2.
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Related words
iff
Conjunction
alt-of
obsolete
Japanese Meaning
必要十分条件（ある命題が真であるための条件として、またその条件が成り立つときに命題が真である状態を表す） / 論理学において、二つの命題の真偽値が一致する、すなわち一方が真ならばもう一方も真、逆に偽ならばもう一方も偽であることを示す / 両側の条件：一方の条件が成立するときに限り、もう一方も成立する関係を意味する
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