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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. For that reason, it is also known as a "helping theorem " or an "auxiliary theorem".
In morphology and lexicography, a lemma (pl.: lemmas or lemmata) is the canonical form, [1] dictionary form, or citation form of a set of word forms. [2] In English, for example, break , breaks , broke , broken and breaking are forms of the same lexeme , with break as the lemma by which they are indexed.
Lemma (morphology), the canonical, dictionary or citation form of a word; Lemma (psycholinguistics), a mental abstraction of a word about to be uttered;
Burnside's lemma also known as the Cauchy–Frobenius lemma; Frattini's lemma (finite groups) Goursat's lemma; Mautner's lemma (representation theory) Ping-pong lemma (geometric group theory) Schreier's subgroup lemma; Schur's lemma (representation theory) Zassenhaus lemma
The lemma first appeared in Euclid's Elements, and is a fundamental result in elementary number theory. If the premise of the lemma does not hold, that is, if p is a composite number , its consequent may be either true or false.
In this step, meaning and the syntactic elements of a lexical item are realized as the lemma. Lemma retrieval, as explained through a spreading-activation theory, is part of a network of separate elements consisting of the abstract concept, the lemma and the lexeme. Lemma retrieval is aided by the activation level of the concept that has yet to ...
Lemma is a phytomorphological term referring to a part of the spikelet. It is the lowermost of two chaff -like bracts enclosing the grass floret . The lemma often bears a long bristle called an awn , and may be similar in form to the glumes , which are chaffy bracts at the base of each spikelet.
Unlike stemming, lemmatization attempts to select the correct lemma depending on the context. Document indexing software like Lucene [6] can store the base stemmed format of the word without the knowledge of meaning, but only considering word formation grammar rules. The stemmed word itself might not be a valid word: 'lazy', as seen in the ...