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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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  • Lemma (mathematics) - Wikipedia
    Lemma (mathematics) In mathematics and other fields, [a] a lemma (pl : lemmas or lemmata) is a generally minor, proven proposition which is used to prove a larger statement
  • Lemma -- from Wolfram MathWorld
    Lemma A short theorem used in proving a larger theorem Related concepts are the axiom, porism, postulate, principle, and theorem The late mathematician P Erdős has often been associated with the observation that "a mathematician is a machine for converting coffee into theorems " (e g , Hoffman 1998, p 7)
  • Definition:Lemma - ProofWiki
    Definition A lemma is a statement which is proven during the course of reaching the proof of a theorem Logically there is no qualitative difference between a lemma and a theorem They are both statements whose value is either true or false
  • Lemmas, If and Only If Theorems: Introduction to Proofs
    A lemma is a "little theorem" which is used to help prove a bigger theorem Usually we call something a lemma if we don't really think we're going to need to re-use it, beyond proving the bigger theorem
  • Axioms, Theorems, Corollaries, Lemmas - Math is Fun
    What are all those things? They sound so impressive! Well, they are basically just facts: statements that have been proven to be true (or
  • lemma - Wiktionary, the free dictionary
    lemma (plural lemmas or lemmata) (mathematics) A proposition proved or accepted for immediate use in the proof of some other proposition quotations
  • LEMMA Definition Meaning | Dictionary. com
    LEMMA definition: a subsidiary proposition introduced in proving some other proposition; a helping theorem See examples of lemma used in a sentence
  • Lemma — Definition, Meaning Examples - Mathwords
    A lemma is a supporting result whose main job is to simplify or enable the proof of a theorem In practice, the same statement could be called a lemma in one textbook and a theorem in another, depending on context
  • Lemma - definition of lemma by The Free Dictionary
    Define lemma lemma synonyms, lemma pronunciation, lemma translation, English dictionary definition of lemma n pl lem·mas or lem·ma·ta 1 A subsidiary proposition assumed to be valid and used to demonstrate a principal proposition 2 A theme, argument, or
  • What is lemma in mathematics? - California Learning Resource Network
    A lemma, at its core, is a proven proposition that serves as a preliminary or auxiliary result within a larger proof Unlike axioms, which are accepted as self-evident truths without proof, lemmas require rigorous demonstration





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