Last Updated：2025/11/26

Dictionary quizzes to help you remember the meaning

Dictionary quizzes to help you remember the meaning

null sign

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Source Word

null sign

(set theory) The sign ∅, associated with empty sets.

Japanese Meaning

空集合記号：空の集合を表す記号（∅）

What is this buttons?

In the lecture, the professor explained that the null sign indicates the absence of elements in a set.

Google Translation / DeepL Translation

講義で教授は、空集合記号が集合に要素が存在しないことを示すと説明した。

Sense（1）

(set theory) The sign ∅, associated with empty sets.

null signs

（ plural ）

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