Last Updated
：2025/11/24
injectivity
Noun
uncountable
countable
Japanese Meaning
数学において、ある関数が単射である性質（すなわち、異なる入力が必ず異なる出力に写る性質）を指す。 / 数学において、単射関数、すなわち一対一対応を持つ関数のことを指す。
Sense（1）
Sense（2）
（ plural ）
Quizzes for review
(mathematics, uncountable) The property of being injective. / (mathematics, countable) An injective function.
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injectivity
When studying linear maps between infinite-dimensional spaces, injectivity often determines whether a left inverse exists.
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When studying linear maps between infinite-dimensional spaces, injectivity often determines whether a left inverse exists.
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