Last Updated：2025/11/23

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(mathematics, rare) A set containing precisely two elements. / (bridge) A pair of cards of the same suit, which are the only cards of that suit in a player's hand

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doubleton

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Source Word

doubleton

Noun

rare

(mathematics, rare) A set containing precisely two elements. / (bridge) A pair of cards of the same suit, which are the only cards of that suit in a player's hand

Japanese Meaning

数学: 厳密に２つの要素を含む集合 / ブリッジ: 同じスートのカードが、手札の中で唯一２枚存在する状態

What is this buttons?

To illustrate bijections, the professor used a doubleton consisting of the elements a and b.

Google Translation / DeepL Translation

全単射を説明するために、教授は要素aとbからなる、ちょうど2つの要素を含む集合を用いた。

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Sense（1）

(mathematics, rare) A set containing precisely two elements.

Sense（2）

(bridge) A pair of cards of the same suit, which are the only cards of that suit in a player's hand

If she had had the doubleton ace of diamonds and a low club, she would have made a four-club splinter bid, showing four-card spade support, the values for game and a singleton or void in clubs.

Google Translation / DeepL Translation

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doubletons

（ plural ）

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doubleton

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doubleton

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