単射
Also known as one-to-one function, 1-to-1 function, injective function
mathematical function that preserves distinctness
AI overview
An injection is a type of mathematical function where each input produces a unique output—no two different inputs map to the same output. This matters because injections are fundamental building blocks in mathematics that help us understand how sets relate to each other and whether information is preserved without loss when transforming data from one form to another.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
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Sources (3)
via Wikidata · CC0
Article · 日本語
数学において、単射あるいは単写（たんしゃ、英: injective function, injection）とは、その値域に属する元はすべてその定義域の元の像として唯一通りに表されるような写像のことをいう。
Abstract from DBpedia / Wikipedia · CC BY-SA