Japanese Language Stack Exchange is a question and answer site for students, teachers, and linguists wanting to discuss the finer points of the Japanese language. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Let's assume that I want to define the concept of injective function:

A function f is said to be injective if each element of the domain has at most one image.

which would become something like that:


But is there something like 少なくとも一個 (at least one) whose meaning would be at most one. By something like 少なくとも I mean that the word order should be the same (ie. (expression whose meaning is “at most”)一個).

share|improve this question
Even if I used the [mathematics] tag, I also welcome non mathematical jargon. – 永劫回帰 Mar 6 at 5:41
@choco, “has” sorry for the confusing typo. – 永劫回帰 Mar 6 at 5:59
up vote 7 down vote accepted

In the context of mathematics, 「高々 (or たかだか) 一個」 is the standard expression.

高々 can also be used in non-technical context, but it's somewhat formal. In daily conversations, we'd say "多くて(も)一個" or "最大で一個", etc.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.