Wikidata facts
- Subclass of
- proposition
Show 4 more facts
- described by source
- Granat Encyclopedic Dictionary
- maintained by WikiProject
- WikiProject Mathematics
- topic's main category
- Category:Lemmas
- different from
- lemma
Sources (1)
via Wikidata · CC0
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Encyclopedic overview
In mathematics and other fields, 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 many cases, a lemma derives its importance from the theorem it aims to prove; however, a lemma can also turn out to be more important than originally thought.
Etymology
Excerpted from Wikipedia’s “lemma” article, available under the CC BY-SA 4.0 licence.