lemma
US /ˈlem.ə/
UK /ˈlem.ə/
名词
1.
引理
a proposition, especially in mathematics, that is assumed to be true in order to prove another proposition
示例:
•
The proof of the theorem relies on a crucial lemma.
定理的证明依赖于一个关键的引理。
•
We first need to establish this lemma before proceeding with the main proof.
在进行主要证明之前，我们首先需要确立这个引理。
2.
词元, 词干
the base or dictionary form of a word, from which all inflected forms are derived
示例:
•
In linguistics, 'run' is the lemma for 'running', 'ran', and 'runs'.
在语言学中，'run'是'running'、'ran'和'runs'的词元。
•
Text analysis often involves reducing words to their common lemma to group similar terms.
文本分析通常涉及将单词还原为其共同的词元，以对相似术语进行分组。