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lemma    音标拼音: [l'ɛmə]
n. 补助定理,补题,引理

补助定理,补题,引理

lemma
引理

lemma
系 引理

lemma
n 1: a subsidiary proposition that is assumed to be true in
order to prove another proposition
2: the lower and stouter of the two glumes immediately enclosing
the floret in most Gramineae [synonym: {lemma}, {flowering
glume}]
3: the heading that indicates the subject of an annotation or a
literary composition or a dictionary entry

Lemma \Lem"ma\ (l[e^]m"m[.a]), n.; pl. L. {Lemmata}
(-m[.a]*t[.a]), E. {Lemmas} (-m[.a]z). [L. lemma, Gr. lh^mma
anything received, an assumption or premise taken for
granted, fr. lamba`nein to take, assume. Cf. {Syllable}.]
1. (Math., Logic) A preliminary or auxiliary proposition
demonstrated or accepted for immediate use in the
demonstration of some other proposition, as in mathematics
or logic.
[1913 Webster]

2. A word that is included in a glossary or list of
headwords; a headword.
[PJC]


main entry word \main entry word\ n.
The form of a word that heads a lexical entry and is
alphabetized in a dictionary; also called {entry word},
{headword}, and {lemma}.

Syn: citation form, entry word, headword, lemma.
[WordNet 1.5]

Note: In different languages, different wordforms, such as
cases for verbs, may be taken as the main entry word.
In English dictionaries, it is the infinitive form, but
in latin dictionaries it is usually the first person
singular present.
[PJC]

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  • 请解释一下这些语料库语言学概念：type，token, lemma，word family？
    比如前文举的例子中，有 12 个类符。 lemma - 词目，剑桥词典上的解释是“a form of a word that appears as an entry in a dictionary and is used to represent all the other possible forms For example, the lemma 'build' represents 'builds', 'building', 'built', etc ”，也就是不同变形的单词的基本形式。
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  • terminology - Lemma vs. Theorem - Mathematics Stack Exchange
    On its own, Fatou's Lemma is not so remarkable, and it quickly becomes a minor routine step in very major and fundamental theorems in real analysis -- this is why it is itself a lemma, not a theorem Another good example of a theorem of the (i) type is "Zorn's lemma"
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    As per title, what is a "lemma"? How is it different from "theorem"? ASAIK, I have to prove a self-proposed theorem in my paper Do I also have to provide the proof for a self-proposed lemma?
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